织梦之GB转UTF-8编码_PHP教程_编程技术--HTML5中文学习网

织梦之GB转UTF-8编码_PHP教程_编程技术

2013-12-25 09:44:47 [小大] 已经帮助：人解决问题

编码

/*******************************
//GB转UTF-8编码
*******************************/
function gb2utf8($gbstr) {
global $CODETABLE;
if(trim($gbstr)=="") return $gbstr;
if(empty($CODETABLE)){
$filename = dirname(__FILE__)."/data/gb2312-utf8.table";
$fp = fopen($filename,"r");
while ($l = fgets($fp,15))
{ $CODETABLE[hexdec(substr($l, 0, 6))] = substr($l, 7, 6); }
fclose($fp);
}
$ret = "";
$utf8 = "";
while ($gbstr) {
if (ord(substr($gbstr, 0, 1)) > 0x80) {
   $thisW = substr($gbstr, 0, 2);
   $gbstr = substr($gbstr, 2, strlen($gbstr));
   $utf8 = "";
   @$utf8 = u2utf8(hexdec($CODETABLE[hexdec(bin2hex($thisW)) - 0x8080]));
   if($utf8!=""){
    for ($i = 0;$i < strlen($utf8);$i += 3)
     $ret .= chr(substr($utf8, $i, 3));
   }
}
else
{
   $ret .= substr($gbstr, 0, 1);
   $gbstr = substr($gbstr, 1, strlen($gbstr));
}
}
return $ret;
}

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