Two examples of UNICODE encoding and decoding in php

Two examples of UNICODE encoding and decoding in php

This article introduces two examples of unicode encoding and decoding in php. For more information, see. Example 1: The functions of php are preg_match_all and empty. 0) {// two bytes of text $ str. = '\ U '. base_convert (ord ($ c), 10, 16 ). str_pad (base_convert (ord ($ c2), 10, 16), 2, 0, STR_PAD_LEFT);} else {$ str. = $ c2 ;}return $ str ;}// decodes the UNICODE-encoded content. function unicode_decode ($ name) {// converts the encoding, convert Unicode encoding to UTF-8 encoding that can be viewed $ pattern = '/([\ w] +) | (\ u ([\ w] {4 })) /I '; preg_match_all ($ pattern, $ name, $ matches); if (! Empty ($ matches) {$ name = ''; for ($ j = 0; $ j <count ($ matches [0]); $ j ++) {$ str = $ matches [0] [$ j]; if (strpos ($ str, '\ u') = 0) {$ code = base_convert (substr ($ str, 2, 2), 16, 10); $ code2 = base_convert (substr ($ str, 4), 16, 10 ); $ c = chr ($ code ). chr ($ code2); $ c = iconv ('ucs-2', 'utf-8', $ c); $ name. = $ c;} else {$ name. = $ str ;}} return $ name ;}?> Example 2: The php function json_decode is used in this example.