PHP encoding conversion program code_PHP tutorial

Let's take a look at the code of an encoding conversion program written in PHP, which can convert between gbk and utf-8.

function phpUnescape_no($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') {                                                                         , $pos, 4);
$unicode = hexdec ($unicodeHexVal);
$unicode . ';';
$decodedStr .= utf8_encode ($entity); 🎜>              $ pos += 4;
                                                                                                           $decodedStr .= chr (hexdec ($hexVal));
                                                                      pos++;
}
}
Return $decodedStr;
}



////////////////////////// /////////////////////////////////////////////

function phpUnescape($escstr){
preg_match_all("/%u[0-9A-Za-z]{4}|%.{2}|*|[0-9a-zA-Z.+-_] +/",$escstr,$matches); //prt($matches);
$ar = &$matches[0];
$c = "";
foreach($ar as $ val){
if (substr($val,0,1)!="%") { //If it is an ascii code of alphanumeric +-_.
$c .=$val;

}

elseif (substr($val,1,1)!="u") { //If it is an ascii code of non-alphanumeric +-_.

$x = hexdec(substr($val,1, 2));

$c .=chr($x);

}

else { //If it is a code greater than 0xFF
$val = intval(substr($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 | ($val % 64));
}
}
}
return UTFtoGBK($c);
}

function UTFtoGBK( $CS){
$CodeObj = new Chinese("UTF8","GBK");
return $CodeObj ->Convert($CS);
}


function phpEscape($str){
$returnStr = "";
if (@function_exists('mb_convert_encoding')){
$returnStr = phpEscape_yes($str);
}

else {

$returnStr = phpEscape_no($str);
}
return $returnStr;
}

function phpEscape_yes($string, $encoding = 'GBK') {
$return = '';

  for ($x = 0; $x < mb_strlen($string, $encoding); $x ++) {
    $str = mb_substr($string, $x, 1, $encoding);
    if (strlen($str) > 1) {
      $return .= '%u' . strtoupper(bin2hex(mb_convert_encoding($str, 'UCS-2', $encoding)));
    } else {
      $return .= '%' . strtoupper(bin2hex($str));
    }
  }
  return $return;
}

function phpEscape_no($str){
    preg_match_all("/[x80-xff].|[x01-x7f]+/",$str,$newstr);
    $ar = $newstr[0];
    foreach($ar as $k=>$v){
        if(ord($ar[$k])>=127){
   $tmpString=bin2hex(GBKtoUCS2($v));
            if (!eregi("WIN",PHP_OS)){
                $tmpString = substr($tmpString,2,2).substr($tmpString,0,2);
            }
            $reString.="%u".$tmpString;
        } else {
            $reString.= rawurlencode($v);
        }
    }
    return $reString;
}

function GBKtoUCS2($CS){
 $CodeObj = new Chinese("GBK","UTF8");
 return utf8ToUnicode($CodeObj ->Convert($CS));
}

function utf8ToUnicode($str,$order="big")
{
  $ucs2string ="";
    $n=strlen($str);
    for ($i=0;$i<$n ;$i++ ) {
  $v = $str[$i];
  $ord = ord($v);
  if( $ord<=0x7F){ //  0xxxxxxx 
     if ($order=="little") {
       $ucs2string .= $v.chr(0);
   }
   else {
       $ucs2string .= chr(0).$v;
   }
  }
  elseif ($ord<0xE0 && ord($str[$i+1])>=0x80) {  //110xxxxx 10xxxxxx
   $a = (ord($str[$i]) & 0x3F )<<6;
   $b =  ord($str[$i+1]) & 0x3F ;
   $ucsCode = dechex($a+$b);   //echot($ucsCode);
   $h = intval(substr($ucsCode,0,2),16);
   $l  =  intval(substr($ucsCode,2,2),16);
   if ($order=="little") {
       $ucs2string   .= chr($l).chr($h);
   }
   else {
        $ucs2string   .= chr($h).chr($l);
   }
   $i++;
  }elseif ($ord<0xF0  && ord($str[$i+1])>=0x80  && ord($str[$i+2])>=0x80) { //1110xxxx 10xxxxxx 10xxxxxx
      $a = (ord($str[$i]) & 0x1F)<<12;    
   $b = (ord($str[$i+1]) & 0x3F )<<6;
   $c =  ord($str[$i+2]) & 0x3F ;
   $ucsCode = dechex($a+$b+$c);   //echot($ucsCode);
   $h = intval(substr($ucsCode,0,2),16);
   $l  =  intval(substr($ucsCode,2,2),16);
   if ($order=="little") {
       $ucs2string   .= chr($l).chr($h);
   }
   else {
        $ucs2string   .= chr($h).chr($l);
   }  
   $i +=2;
  }
    }
 return $ucs2string;  
}

////////////////////////////////////////////////////////

function unescapeFuncMake($Txt){
 if ($Txt[2]!="*") return $Txt;
 $ETxt = "";
    $MTxt = "egy+nb@QwXvCWjKPRxVzDl/h7EOMtSa9f6*FpNr81i_0kqdG2LBcuZIAJYo34m-sT%5.UH3SYZ0hzt/y@qDTNECf1BpujiO.X6ks+oIR8GPVg9wbm%xJvKLWrn*F4HAe-QladM27Uc5_";
 $TTxtnum = substr($Txt,0,2);
 $TTxt = substr((substr($MTxt,70).substr($MTxt,70)),$TTxtnum);
 for ($ii=3; $ii  $w = ($ii-3)%10;
  $k = strpos($TTxt,$Txt[$ii],$w)-$w;
  $ETxt .= $MTxt[$k];
 }
 return phpUnescape($ETxt);
}

 

function escapeFuncMake($Txt){
if ($Txt=="" || $Txt[2]=="*") return $Txt;
$MTxt = "egy+nb@QwXvCWjKPRxVzDl /h7EOMtSa9f6*FpNr81i_0kqdG2LBcuZIAJYo34m-sT%5.UH3SYZ0hzt/y@qDTNECf1BpujiO.X6ks+oIR8GPVg9wbm%xJvKLWrn*F4HAe-QladM27Uc5_";
$BTxt = phpEscape($T xt);
$TTxt = floor(mt_rand(0, 50));
$ETxt = $TTxt.($TTxt>9?"*":"**");
for ($ii=0; $ii $k = strpos($MTxt,$BTxt[$ii])+($ii%10);
$ETxtstr = substr((substr($MTxt,70).substr($MTxt, 70)),$TTxt);
$ETxt .= $ETxtstr[$k];
}
return $ETxt;
}

http://www.bkjia.com/PHPjc/445049.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/445049.htmlTechArticleLet’s take a look at the code of an encoding conversion program written in php. Put the code between gbk and utf-8 Mutual transfer, etc. function phpUnescape_no($source) { $decodedStr = ; $pos = 0; $len = strlen ($source); w...