转载请注明来源:php中escape unescape的写法
- function phpescape($str){
- $sublen=strlen($str);
- $restring="";
- for ($i=0;$i<$sublen;$i++){
- if(ord($str[$i])>=127){
- $tmps教程tring=bin2hex(iconv("utf-8","ucs-2",substr($str,$i,2)));
- 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","utf-8",pack("h4",substr($v,-4)));
- elseif(substr($v,0,3) == "&#x")
- $ar[$k] = iconv("ucs-2","utf-8",pack("h4",substr($v,3,-1)));
- elseif(substr($v,0,2) == "&#") {
- $ar[$k] = iconv("ucs-2","utf-8",pack("n",substr($v,2,-1)));
- }
- }
- return join("",$ar);
- }
- function escape($str) {
- preg_match_all("/[x80-xff].|[x01-x7f]+/",$str,$r);
- $ar = $r[0];
- foreach($ar as $k=>$v) {
- if(ord($v[0]) < 128)
- $ar[$k] = rawurlencode($v);
- else
- $ar[$k] = "%u".bin2hex(iconv("gb2312","ucs-2",$v));
- }
- return join("",$ar);
- }
- function unescape($str) {
- $str = rawurldecode($str);
- preg_match_all("/(?:%u.{4})|.+/",$str,$r);
- $ar = $r[0];
- foreach($ar as $k=>$v) {
- if(substr($v,0,2) == "%u" && strlen($v) == 6)
- $ar[$k] = iconv("ucs-2","gb2312",pack("h4",substr($v,-4)));
- } //开源代码phpfensi.com
- return join("",$ar);
- }
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