php转换处理js的escape转义中文的函数

标准

ajax提交中文时,有时经过 了escape转义,php并没有提供相应的函数进行解析,正面提供两种编码的解析方法:

GB2312编码:

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); }

UTF8编码:

function unescape($str){ $ret = ”; $len = strlen($str); for ($i = 0; $i < $len; $i++){ if ($str[$i] == ‘%’ && $str[$i+1] == ‘u’){ $val = hexdec(substr($str, $i+2, 4)); if ($val < 0x7f) $ret .= chr($val); else if($val < 0x800) $ret .= chr(0xc0|($val>>6)).chr(0x80|($val&0x3f)); else $ret .= chr(0xe0|($val>>12)).chr(0x80|(($val>>6)&0x3f)).chr(0x80|($val&0x3f)); $i += 5; } else if ($str[$i] == ‘%’){ $ret .= urldecode(substr($str, $i, 3)); $i += 2; } else $ret .= $str[$i]; } return $ret; }


						

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