PHP代码
- <?
- function uni_decode($s) {
- preg_match_all('/\&\#([0-9]{2,5})\;/', $s, $html_uni);
- preg_match_all('/[\\\%]u([0-9a-f]{4})/ie', $s, $js_uni);
- $source = array_merge($html_uni[0], $js_uni[0]);
- $js = array();
- for($i=0;$i<count($js_uni[1]);$i++) {
- $js[] = hexdec($js_uni[1][$i]);
- }
- $utf8 = array_merge($html_uni[1], $js);
- $code = $s;
- for($j=0;$j<count($utf8);$j++) {
- $code = str_replace($source[$j], unicode2utf8($utf8[$j]), $code);
- }
- return $code;//$s;//preg_replace('/\\\u([0-9a-f]{4})/ie', "chr(hexdec('\\1'))", $s);
- }
- function unicode2utf8($c) {
- $str="";
- if ($c < 0x80) {
- $str.=chr($c);
- } else if ($c < 0x800) {
- $str.=chr(0xc0 | $c>>6);
- $str.=chr(0x80 | $c & 0x3f);
- } else if ($c < 0x10000) {
- $str.=chr(0xe0 | $c>>12);
- $str.=chr(0x80 | $c>>6 & 0x3f);
- $str.=chr(0x80 | $c & 0x3f);
- } else if ($c < 0x200000) {
- $str.=chr(0xf0 | $c>>18);
- $str.=chr(0x80 | $c>>12 & 0x3f);
- $str.=chr(0x80 | $c>>6 & 0x3f);
- $str.=chr(0x80 | $c & 0x3f);
- }
- return $str;
- }
- $str='%u5927%u5BB6%u597D%uFF0C我是孤魂！<br />\u8FD9\u662F\u6D4B\u8BD5\u6587\u672C\uFF01';
- echo uni_decode($str); // 大家好，我是孤魂！这是测试文本！
- ?>
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