如何编写一个长尾词来改写PHP解密Unicode及Escape加密字符串函数？

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PHP 解密 Unicode 及 Escape 加密字符串函数 + [链接] + 1. [代码] [PHP] 代码 + ?php+function+uni_decode($s)+{+preg_match_all(''/\%u([0-9a-fA-F]{4})/',$s,$matches)+{+$result+='';+foreach($matches[1] as $code)+{+$result.=$chr(hexdec($code));+}+$result;+}+}+1.+[代码] [PHP] 代码 + ?php+function+escape_encode($s)+{+return+str_replace('+','+20+',str_replace('%','+25+',str_replace('+','+2B+',urlencode($s))));+}+

PHP解密Unicode及Escape加密字符串函数
blog.ppsql.net/post-1835.html

1.[代码][PHP]代码

<?php 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！ blog.ppsql.net/post-1835.html