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

PHP implements escape and unescape function code sharing in Javascript, escapeunescape

This class is quite easy to use. What’s the purpose? PHP can use it to transfer GBK characters in JSON, such as Chinese, Japanese, Korean and Shenma’s Unicode.

<&#63;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);
  }
  
}
&#63;>

Another similar script found on google code

<&#63;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("/(&#63;:%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);
    }
 
&#63;>

http://www.bkjia.com/PHPjc/955972.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/955972.htmlTechArticlePHP implements escape and unescape function code sharing in Javascript. The escapeunescape class is quite easy to use. Does it work? PHP does it JSON transfers GBK characters, such as Chinese, Japanese, and Korean Shenma Unicode is most suitable...