PHP में UTF-8। भाग 1

नमस्कार, इस पोस्ट के साथ मैं एक उज्जवल भविष्य लाने की कोशिश करना चाहूंगा जिसमें हर कोई "कोषेर" UTF-8 एन्कोडिंग का उपयोग करता है। विशेष रूप से, यह मेरे निकटतम वातावरण पर लागू होता है - वेब और प्रोग्रामिंग भाषा - PHP, और श्रृंखला के अंत में हम व्यावहारिक भाग से संपर्क करेंगे और एक और साइकिल लाइब्रेरी विकसित करेंगे।

1. परिचय

आगे के पाठ को समझने के लिए, शुरुआती लोगों को सामान्य रूप से एन्कोडिंग पर कुछ विवरण जानना होगा। मैं यथासंभव सामग्री की प्रस्तुति को सरल बनाने की कोशिश करूंगा। बिटवाइज़ ऑपरेशंस के बारे में किसी भी अनजान व्यक्ति के लिए, आपको पहले विकिपीडिया पर मौजूद सामग्रियों से खुद को परिचित करना होगा।



आपको यह समझने की ज़रूरत है कि कंप्यूटर संख्याओं के साथ काम करता है और स्ट्रिंग (और इसके भाग के रूप में) को भी संख्यात्मक रूप में संग्रहीत करता है। इन उद्देश्यों के लिए, एनकोडिंग हैं। वास्तव में, ये टेबल हैं जिसमें संख्याओं और प्रतीकों के बीच पत्राचार का संकेत दिया गया है। ऐतिहासिक रूप से, मुख्य ASCII एन्कोडिंग में केवल नियंत्रण कोड और लैटिन वर्ण होते हैं, कुल 128 (127 अधिकतम संख्या है जिसे 7 बिट्स में संग्रहीत किया जा सकता है)।



अन्य ASCII ग्रंथों को संग्रहीत करने के लिए, कई अन्य एन्कोडिंग बनाए गए थे जिसमें 8 वां बिट जोड़ा गया था। वे पहले से ही 256 वर्णों को संग्रहीत कर सकते हैं, जिनमें से पहले 128 पारंपरिक रूप से ASCII के अनुरूप थे, लेकिन बाकी लोगों में, हर कोई वह सब कुछ चाहता था जो वह चाहता था। और ऐसा हुआ कि ऑपरेटिंग सिस्टम के प्रत्येक निर्माता के पास एन्कोडिंग के अपने सेट हैं, और प्रत्येक व्यक्ति केवल अपेक्षाकृत संकीर्ण सर्कल के लोगों की जरूरतों को पूरा करता है। सामान्य मानकों की अनुपस्थिति से स्थिति और अधिक जटिल हो गई थी, उन्हें एल्गोरिथम रूप से अलग करना असंभव हो गया और अब यह अनुमान लगाने जैसा है (निम्न भागों में उस पर अधिक)।



नतीजतन, इसे एक सार्वभौमिक आउटपुट की आवश्यकता थी, एक एन्कोडिंग जो सभी संभावित पात्रों को संग्रहीत कर सकती है और विभिन्न लोगों के लेखन में अंतर को ध्यान में रख सकती है (उदाहरण के लिए, लेखन की दिशा)। यूनिकोड बनाकर कार्य को हल किया गया, जो एक एन्कोडिंग के साथ दुनिया में लगभग सभी लेखन प्रणालियों को एनकोड करने में सक्षम है।



वेब पर सबसे लोकप्रिय एन्कोडिंग UTF-8 है, जिसमें कई महत्वपूर्ण लाभ हैं:

• ASCII के साथ पूर्ण संगतता;
• इसे अन्य एन्कोडिंग्स से उच्च सटीकता के साथ पहचाना जा सकता है;
• प्रत्येक वर्ण 1 से 4 बाइट्स पर कब्जा कर सकता है (मानक में, बाइट्स को ओकटेट कहा जाता है; ध्यान, मैं इन शब्दों को एक दूसरे के साथ बदल सकता हूं!) संख्यात्मक मूल्य के आधार पर संग्रहीत किया जाना चाहिए।

मैं अंतिम बिंदु पर ध्यान देना चाहूंगा। इसका मतलब यह है कि अगर पहले एक मेज पर एक साधारण रूपांतरण करना और परिणाम रिकॉर्ड करना संभव था, तो अब इस परिणाम को बचाने के लिए एक विधि को परिभाषित किया गया है, जो इसे स्टोर करने के लिए आवश्यक थोड़ी गहराई पर निर्भर करता है। एक उदाहरण के रूप में, आप तालिका में भंडारण सिद्धांत (एक्स - संग्रहीत डेटा बिट्स) देख सकते हैं:

बिट	अधिकतम संग्रहीत मूल्य	1 सप्तक	2 अष्टक	3 ओकटेट	4 ओकटेट
	ऑक्टेट शुरू करें	सतत अष्टक
7	U + 007F	0xxxxxxx
11	U + 07FF	110xxxxx	10xxxxxx
16	U + FFFF	1110xxxx	10xxxxxx	10xxxxxx
21	U + 10FFFF (मानक से, लेकिन वास्तव में U + 1FFFFF)	11110xxx	10xxxxxx	10xxxxxx	10xxxxxx

यह नोटिस करना आसान है कि प्रारंभिक ऑक्टेट के उच्च-क्रम बिट्स में हमेशा एक काउंटर होता है जो अनुक्रम में बाइट्स की संख्या को इंगित करता है - यह अग्रणी इकाइयों की संख्या है, जिसके बाद शून्य है। कृपया ध्यान दें: यदि केवल एक ऑक्टेट है, तो अग्रणी इकाई को संकेत नहीं दिया गया है, इसलिए शुरुआती ऑक्टेट को अलग-अलग लोगों से अलग करना आसान है।



एक उदाहरण के लिए, आइए देखें कि कैसे "Hi Hi" UTF-8 एन्कोडिंग में दिखेगा।



पहला कदम। प्रत्येक वर्ण को उसके संख्यात्मक प्रतिनिधित्व में बदलें (मैं हेक्साडेसिमल संख्या प्रणाली का उपयोग करूंगा) तालिका के अनुसार।



हाय हाय = 0x041F 0x0440 0x0438 0x0432 0x044D 0x0442 0x0020 0x0048 0x0069

यह मत भूलो कि अंतरिक्ष भी एक प्रतीक है।



चरण दो हेक्साडेसिमल से बाइनरी में संख्याएँ परिवर्तित करें। हम विंडोज 7 कैलकुलेटर (प्रोग्रामर मोड में) का उपयोग करते हैं।



0x041F = 0000 0100 0001 1111

0x0440 = 0000 0100 0100 0000

0x0438 = 0000 0100 0011 1000

0x0432 = 0000 0100 0011 0010

0x0435 = 0000 0100 0011 0101

0x0442 = 0000 0100 0100 0010

0x0020 = 0010 0000

0x0048 = 0100 1000

0x0069 = 0110 1001

स्पष्टता के लिए, मैंने शून्य को उच्च अंकों में जोड़ा। कृपया ध्यान दें: वर्ण बाइट्स की एक अलग संख्या पर कब्जा कर सकते हैं।



चरण तीन यूटीएफ -8 ऑक्टेट अनुक्रमों में संख्यात्मक अभ्यावेदन का अनुवाद करें।



0x041F = 100 0001 1111 = 110 xxxxx 10xxxxxx = 110 10000 10 011111

0x0440 = 100 0100 0000 = 110 xxxxx 10xxxxxx = 110 10001 10 000 000

0x0438 = 100 0011 1000 = 110 xxxxx 10xxxxxx = 110 10000 10 111000

0x0432 = 100 0011 0010 = 110 xxxxx 10xxxxxx = 110 10000 10 110010

0x0435 = 100 0011 0101 = 110 xxxxx 10xxxxxx = 110 10000 10 110 101

0x0442 = 100 0100 0010 = 110 xxxxx 10xxxxxx = 110 10001 10 000010

0x0020 = 010 0000 = 0 xxxxxx = 0 0100000

0x0048 = 100 1000 = 0 xxxxxx = 0 1001000

0x0069 = 110 1001 = 0 xxxxxx = 0 1101001

काउंटर बोल्ड हैं। कृपया ध्यान दें: 0x0080 तक के कोड वाले अक्षर अपरिवर्तित सहेजे गए हैं, यह ASCII संगतता है। यह भी समझा जाना चाहिए कि यूटीएफ -8 विंडोज़ -1251 की तुलना में रूसी-भाषा के पाठ के लिए 2 गुना अधिक स्थान (2 बाइट्स) लेगा, जो केवल 1 बाइट का उपयोग करता है।



समाधान के रूप में, आप पूरे अनुक्रम को एक पंक्ति में लिख सकते हैं (मैं त्रुटियों के बिना आशा करता हूं): "11010000 10011111 11010001 10000000 11010000 10111000 11010000 10110010 11010000 1010101 11010001 10000010010000 01001000 01101001"।



आप कोड के साथ समाधान की जांच कर सकते हैं:

$ tmp = '' ;

foreach ( विस्फोट) ( '' , '11010000 10011111 11010001 10000000 11010000 10111000 11010000 10110010 11010000 10110101 11010001 10000010 00100000 01001000 01101001 ) $ ओक्टेट ) {

$ tmp = chr ( bindec ( $ octet ) ) ;

}

गूंज $ tmp ;

कोड में रिवर्स ऑपरेशन करने के लिए, हमें आवश्यकता है (सरलीकृत):

1. 1 वर्ण में अष्टक की संख्या निर्धारित करें और इस मान को सहेजें;
2. पहले बाइट से ओकटेट काउंटर को छोड़ दें, शेष को बचाएं;
3. यदि 1 से अधिक ऑक्टेट के अनुक्रम में ऑपरेशन 2 के बाद शेष को 6 बिट्स के बाईं ओर शिफ्ट करें और उनमें बाद के ऑक्टेट के निचले 6 बिट्स से जानकारी लिखें;
4. 1 बिंदु से संतुष्ट होने तक दोहराएं :)।

ऑप्टिमाइज्ड PHP कोड जो आपको वर्णों का एक संख्यात्मक प्रतिनिधित्व और उलटा संचालन प्राप्त करने की अनुमति देता है (मैं चक्र के अंत में पूर्ण संस्करण प्रकाशित करूंगा):

Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }

1. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
   
   
   
   
2. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
   
   
   
   
3. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
   
   
   
   
4. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
   
   
   
   
5. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
   
   
   
   
6. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
   
   
   
   
7. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
   
   
   
   
8. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
   
   
   
   
9. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
   
   
   
   
10. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
11. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
12. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
13. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
14. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
15. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
16. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
17. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
18. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
19. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
20. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
21. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
22. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
23. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
24. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
26. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
27. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
28. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
29. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
30. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
31. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
32. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
33. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
34. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
35. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
36. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
38. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
39. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
40. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
41. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
42. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
43. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
45. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
46. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
47. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
48. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
49. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
50. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
51. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
52. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
53. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
54. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
56. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
57. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
58. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
59. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
60. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
61. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
63. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
64. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
65. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
66. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
67. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
68. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
69. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
70. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
71. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
72. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
73. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
74. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
75. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
78. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
79. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
80. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
81. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
82. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
83. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
84. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
85. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
86. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
87. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
88. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
89. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
90. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
91. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
92. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
93. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
94. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
95. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    
96. Copy Source | Copy HTML class String_Multibyte { /** <br/> * UTF-8 , $index $char. <br/> * , , BOM 0x10FFFE-0x10FFFF FALSE. <br/> * <br/> * [...] , . <br/> * <br/> * @author Andrew Dryga <anddriga at gmail>, {@link http://andryx.habrahabr.ru}. <br/> * @param string $char (). <br/> * @param int &$index , . , . <br/> * @return int|false FALSE , . <br/> */ public function getCodePoint( $char , & $index = 0 ) { // $octet1 = ord( $char [ $index ]); // ASCII ( 0bbb bbbb), . if ( $octet1 >> 7 == 0x00 ) { return $octet1 ; } elseif ( $octet1 >> 6 != 0x02 ) { // if (! isset ( $char [++ $index ])) { return false ; } // $octet2 = ord( $char [ $index ]); // ( 10bb bbbb) if ( $octet2 >> 6 != 0x02 ) { -- $index ; return false ; } // 6 $octet2 &= 0x3F ; // , if ( $octet1 >> 5 == 0x06 ) { $result = ( $octet1 & 0x1F ) << 6 | $octet2 ; // if ( 0x80 < $result ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet3 = ord( $char [ $index ]); if ( $octet3 >> 6 != 0x02 ) { -- $index ; return false ; } $octet3 &= 0x3F ; if ( $octet1 >> 4 == 0x0E ) { $result = ( $octet1 & 0x0F ) << 12 | $octet2 << 6 | $octet3 ; // ; , BOM if ( 0x800 < $result && !( 0xD7FF < $result && $result < 0xF900 ) && $result != 0xFEFF ) { return $result ; } } else { if (! isset ( $char [++ $index ])) { return false ; } $octet4 = ord( $char [ $index ]); if ( $octet4 >> 6 != 0x02 ) { -- $index ; return false ; } $octet4 &= 0x3F ; if ( $octet1 >> 3 == 0x1E ) { $result = ( $octet1 & 0x07 ) << 18 | $octet2 << 12 | $octet3 << 6 | $octet4 ; // ; ; // , Unicode 10FFFF if ( 0x10000 < $result && $result < 0xF0000 ) { return $result ; } } } } return false ; } } /** <br/> * UTF-8 . <br/> * [...] <br/> * @author ur001 <ur001ur001@gmail.com>, {@link http://ur001.habrahabr.ru}. <br/> * @param string $codePoint Unicode character ordinal. <br/> * @return string|FALSE UTF-8 FALSE . <br/> */ public function getChar( $codePoint ) { if ( $codePoint < 0x80 ) { return chr( $codePoint ); } elseif ( $codePoint < 0x800 ) { return chr( 0xC0 | $codePoint >> 6 ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x10000 ) { return chr( 0xE0 | $codePoint >> 12 ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } elseif ( $codePoint < 0x110000 ) { return chr( 0xF0 | $codePoint >> 18 ) . chr( 0x80 | $codePoint >> 12 & 0x3F ) . chr( 0x80 | $codePoint >> 6 & 0x3F ) . chr( 0x80 | $codePoint & 0x3F ); } else { return false ; } } }
    
    
    
    

GetChar () विधि Jevix लाइब्रेरी से ली गई थी, मैंने पहले से ही इस कोड को वैसे भी देखा था, इसे अच्छी तरह से याद किया और यहां तक ​​कि अगर स्मृति से लागू किया गया, तो लेखक का उल्लेख नहीं करना बेईमानी होगी।



आप कोड का उपयोग करके परिणामी कक्षा का परीक्षण कर सकते हैं:

Copy Source | Copy HTML

1. // वस्तु का एक उदाहरण बनाएँ
2. $ obj = new String_Multibyte ();
3. // हम परीक्षण के लिए सबसे सुविधाजनक तरीके से लाइन बनाते हैं
4. $ tmp = '' ;
5. foreach (विस्फोट) ( '' , '11010000 10011111 11010001 10000000 11010000 10111000 11010000 10110010 11010000 10110101 11010001 10000010 00100000 01001000 01101001 ) $ ओक्टेट ) {
6. $ tmp = chr (bindec ( $ octet ));
7. }
8. // चरित्र कोड का एक नक्शा बनाएँ
9. $ नक्शा = सरणी ();
10. $ लेन = स्ट्रलेन ( $ tmp );
11. के लिए ( $ i = 0 ; $ i < $ l ; $ i ++) {
12. अगर ( सही == ( $ परिणाम = $ obj -> getCodePoint ( $ tmp , $ i ))) {
13. $ नक्शा [] = $ परिणाम ;
14. }
15. }
16. // लाइन को साफ़ करें और इसे मैप से रिस्टोर करें
17. $ tmp = '' ;
18. $ गिनती = गिनती ( $ नक्शा );
19. के लिए ( $ i = 0 ; $ i < $ count ; $ i ++) {
20. $ tmp । = $ obj -> getChar ( $ नक्शा [ $ i ]);
21. }
22. // पुनर्स्थापित स्ट्रिंग मुद्रित करें
23. इको $ tmp , '<br />' .EOL;
24. // इसे वैधता के लिए जांचें (यह सबसे आसान तरीका है)
25. गूंज preg_match ( '#। {1} #u' , $ tmp )? 'मान्य यूनिकोड' : 'अज्ञात' , '<br />' .EOL;

मैंने परीक्षणों के लिए सबसे सुंदर या सही कोड लिखने की कोशिश नहीं की, लेकिन इसके साथ आप शांत रूप से पात्रों के मूल्यों को थोड़ा बदल सकते हैं और तुरंत परिणाम देख सकते हैं। सभी अमान्य अनुक्रमों को अनदेखा किया जाएगा, आउटपुट स्ट्रिंग हमेशा मान्य होती है, लेकिन आने के लिए और भी बहुत कुछ है।



यह सुनिश्चित करने के लिए कि पाठ में कुछ भी अतिश्योक्तिपूर्ण नहीं है, आपको इसमें से अनावश्यक (अप्राप्य, गैर-अंकन, अनिश्चित, सरोगेट आदि) वर्णों को हटाने और सामान्यीकरण करने की आवश्यकता है, अगले भाग में और अधिक।

पुनश्च:

आगे यह सामान्यीकरण, सुरक्षा, कोडिंग के निर्धारण और PHP में UTF-8 के साथ काम करने के बारे में होगा।

संदर्भ:

• unicode.org ;
• यूटीएफ -8 विकी पर
• UTF-8 के साथ काम करने वाली लिपियों के लिए परीक्षण पृष्ठ ;
• UTF-8 बिट द्वारा ।