<?    
function phpescape($str) 
{ 
         $sublen=strlen($str); 
         $retrunString=""; 
         for ($i=0;$i<$sublen;$i++) 
         { 
                  if(ord($str[$i])>=127) 
                  { 
                           $tmpString=bin2hex(iconv("gb2312","ucs-2",substr($str,$i,2))); 
                           //$tmpString=substr($tmpString,2,2).substr($tmpString,0,2);window下可能要打開此項 
                           $retrunString.="%u".$tmpString; 
                           $i++; 
                  } else { 
                           $retrunString.="%".dechex(ord($str[$i])); 
                  } 
         } 
         return $retrunString; 
}  
function unescape($str) { 
         $str = rawurldecode($str); 
         preg_match_all("/%u.{4}|&#x.{4};|&#\d+;|.+/U",$str,$r); 
         $ar = $r[0]; 
         foreach($ar as $k=>$v) { 
                  if(substr($v,0,2) == "%u") 
                           $ar[$k] = iconv("UCS-2","GBK",pack("H4",substr($v,-4))); 
                  elseif(substr($v,0,3) == "&#x") 
                           $ar[$k] = iconv("UCS-2","GBK",pack("H4",substr($v,3,-1))); 
                  elseif(substr($v,0,2) == "&#") { 
                           $ar[$k] = iconv("UCS-2","GBK",pack("n",substr($v,2,-1))); 
                  } 
         } 
         return join("",$ar); 
}    
?>

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