PHP implements escape and unescape function code sharing in Javascript. escapeunescape_PHP tutorial

PHP implements escape and unescape function code sharing in Javascript, and escapeunescape. PHP implements code sharing of the escape and unescape functions in Javascript. the escapeunescape class is quite useful. why? PHP transmits GBK characters in JSON format, such as Chinese characters, Japanese characters, and Korean characters. Unicode is the most compatible with PHP to implement escape and unescape function code sharing in Javascript. escapeunescape

This class is quite useful. what is the function? PHP uses JSON to transmit GBK characters, such as Chinese, Japanese, and Korean. Unicode is the most suitable ..

<? Phpclasscoding {// simulate functions of the javascript escape and UNESCAPE functions functionunescape scape ($ 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) {// minutes -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
 
  
1) {// multi-byte character $ 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) ;}}?>
 

Another similar script found on google code

<?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})|&#x.{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)=="&#x")                $ar[$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);    } ?>

This category is quite easy to use. what is the function? PHP uses JSON to transmit GBK characters, such as the Unicode of Chinese, Japanese, and Korean...