PHP实现Javascript中的escape及unescape函数代码分享
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2023-02-16 21:53:54
这个类相当好用.作用么,php做json传递gbk字符,比如中文,日文,韩文神马的unicode最合适不过了..
这个类相当好用.作用么,php做json传递gbk字符,比如中文,日文,韩文神马的unicode最合适不过了..
<?php classcoding { //模仿javascript的escape和unescape函数的功能 functionunescape($str) { $text=preg_replace_callback("/%u[0-9a-za-z]{4}/",array( &$this, 'toutf8' ),$str); returnmb_convert_encoding($text,"gb2312","utf-8"); } functiontoutf8($ar) { foreach($aras$val){ $val=intval(substr($val,2),16); if($val<0x7f){// 0000-007f $c.=chr($val); }elseif($val<0x800){// 0080-0800 $c.=chr(0xc0|($val/64)); $c.=chr(0x80|($val%64)); }else{// 0800-ffff $c.=chr(0xe0|(($val/64)/64)); $c.=chr(0x80|(($val/64)%64)); $c.=chr(0x80|($val%64)); } } return$c; } functionescape($string,$encoding='gb2312') { $return=''; for($x=0;$x<mb_strlen($string,$encoding);$x++){ $str=mb_substr($string,$x,1,$encoding); if(strlen($str)>1){// 多字节字符 $return.='%u'.strtoupper(bin2hex(mb_convert_encoding($str,'ucs-2',$encoding))); }else{ $return.='%'.strtoupper(bin2hex($str)); } } return$return; } functiongb2utf8($string,$encoding='utf-8',$from_encode='gb2312') { returnmb_convert_encoding($string,$encoding,$from_encode); } } ?>
google code 上找到的另外一个类似脚本
<?php functionphpescape($str) { $sublen=strlen($str); $retrunstring=""; for($i=0;$i<$sublen;$i++) { if(ord($str[$i])>=127) { $tmpstring=bin2hex(iconv("gbk","ucs-2",substr($str,$i,2))); $tmpstring=substr($tmpstring,2,2).substr($tmpstring,0,2); $retrunstring.="%u".$tmpstring; $i++; }else{ $retrunstring.="%".dechex(ord($str[$i])); } } return$retrunstring; } functionescape($str) { preg_match_all("/[\x80-\xff].|[\x01-\x7f]+/",$str,$r); $ar=$r[0]; foreach($aras$k=>$v) { if(ord($v[0])<128) $ar[$k]=rawurlencode($v); else $ar[$k]="%u".bin2hex(iconv("utf-8","ucs-2",$v)); } returnjoin("",$ar); } functionphpunescape($source) { $decodedstr=""; $pos=0; $len=strlen($source); while($pos<$len) { $charat=substr($source,$pos,1); if($charat=='%') { $pos++; $charat=substr($source,$pos,1); if($charat=='u') { // we got a unicode character $pos++; $unicodehexval=substr($source,$pos,4); $unicode=hexdec($unicodehexval); $entity="".$unicode.';'; $decodedstr.=utf8_encode($entity); $pos+=4; }else{ // we have an escaped ascii character $hexval=substr($source,$pos,2); $decodedstr.=chr(hexdec($hexval)); $pos+=2; } }else{ $decodedstr.=$charat; $pos++; } } return$decodedstr; } functionunescape($str) { $str=rawurldecode($str); preg_match_all("/(?:%u.{4})|.{4};|\d+;|.+/u",$str,$r); $ar=$r[0]; #print_r($ar); foreach($aras$k=>$v) { if(substr($v,0,2)=="%u") $ar[$k]=iconv("ucs-2","utf-8",pack("h4",substr($v,-4))); elseif(substr($v,0,3)=="") $ar[$k]=iconv("ucs-2","utf-8",pack("h4",substr($v,3,-1))); elseif(substr($v,0,2)=="") { //echo substr($v,2,-1).""; $ar[$k]=iconv("ucs-2","utf-8",pack("n",substr($v,2,-1))); } } returnjoin("",$ar); } ?>
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