转自：http://blog.csdn.net/bestjovi/archive/2006/07/31/1003838.aspx
最完整的phpescape函数
function phpescape($str){ preg_match_all("/[\x80-\xff].|[\x01-\x7f]+/",$str,$newstr); $ar = $newstr[0]; foreach($ar as $k=>$v){ if(ord($ar[$k])>=127){ $tmpString=bin2hex(iconv("GBK","ucs-2",$v)); if (!eregi("WIN",PHP_OS)){ $tmpString = substr($tmpString,2,2).substr($tmpString,0,2); } $reString.="%u".$tmpString; } else { $reString.= rawurlencode($v); } } return $reString;}
//该方法在某些linux系统下，//会因为iconv的php版本问题//造成该函数方法无法正常使用//使用前请测试先function phpescape($str) { preg_match_all("/[€-ÿ].|[-]+/",$str,$r); $ar = $r[0]; foreach($ar as $k=>$v) { if(ord($v[0]) < 128){ $ar[$k] = rawurlencode($v); echo $ar[$k]."<BR>"; } else { $ar[$k] = "%u".bin2hex(iconv("GBK","ISO-10646-UCS-2",$v)); //此处GBK为目标代码的编码格式，请实际情况修改 echo $ar[$k]."<BR>"; } } return join("",$ar);}//该方法为上面的改进版//首先判断平台版本是否为win系统//但该版本会有些特殊字符无法使用function phpescape($str){ $sublen=strlen($str); $reString=""; for ($i=0;$i<$sublen;$i++){ if(ord($str[$i])>=127){ $tmpString=bin2hex(iconv("GBK","ucs-2",substr($str,$i,2))); //此处GBK为目标代码的编码格式，请实际情况修改 if (!eregi("WIN",PHP_OS)){ $tmpString=substr($tmpString,2,2).substr($tmpString,0,2); } $reString.="%u".$tmpString; $i++; } else { $reString.="%".dechex(ord($str[$i])); } } return $reString;}function unescape($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); } 
