js的escape转义中文php的转换函数
来源：程序员人生 发布时间：2013-10-28 13:45:41 阅读次数：2206次
很多时候需要用到js的escape函数来转换中文字符，可是用js转换后的字符怎么用php来转换回来呢，下面我就找到了两个很实用的函数。
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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