js的escape如何在PHP中来解呢?

下面的这个函数可以正确的解析,网上有不少unescape的函数,但好用的不多.

这是很久以前收集的一个,不知道谁写的了,但经过测试没有问题~

function phpUnescape($escstr)       {           preg_match_all("/%u[0-9A-Za-z]{4}|%.{2}|[0-9a-zA-Z.+-_]+/", $escstr, $matches);           $ar = &$matches[0];           $c = "";           foreach($ar as $val)           {               if (substr($val, 0, 1) != "%")               {                   $c .= $val;               } elseif (substr($val, 1, 1) != "u")               {                   $x = hexdec(substr($val, 1, 2));                   $c .= chr($x);               }                else              {                   $val = intval(substr($val, 2), 16);                   if ($val < 0x7F) // 0000-007F                   {                       $c .= chr($val);                   } elseif ($val < 0x800) // 0080-0800                   {                       $c .= chr(0xC0 | ($val / 64));                       $c .= chr(0x80 | ($val % 64));                   }                    else // 0800-FFFF                   {                       $c .= chr(0xE0 | (($val / 64) / 64));                       $c .= chr(0x80 | (($val / 64) % 64));                       $c .= chr(0x80 | ($val % 64));                   }                }            }                  return $c;       }

escape编码后:

%u6D4B%u8BD5www.abc.com%22%22%27%27%3C%3E%26%26

解码后:

测试www.abc.com""''<>&&

http://www.koyoz.com/blog/?action=show&id=207