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php转码gbk,php汉字转码 GBK->Unicode(UTF8)编码转换

如何实现php汉字编码转换,有关php汉字转码的例子。

该类内置了四个函数"htmlHex","htmlDec","escape","u2utf8"

方便用户的使用,同时也可自定义函数进行自己喜欢的操作

qswhGBK.php文件下载:http://file.jbxue.com/code/201401/qswhGBK.zip

例子:

复制代码 代码示例:

//php汉字转码 GBK->Unicode(UTF8)

class qswhGBK{

var $qswhData;

function qswhGBK($filename="qswhGBK.php"){

$this->qswhData=file($filename);

}

function gb2u($gb,$callback=""){

$ret="";

for($i=0;$i

if(($p=ord(substr($gb,$i,1)))>127){

$q=ord(substr($gb,++$i,1));

$q=($q-($q>128?65:64))*4;

$q=substr($this->qswhData[$p-128],$q,4);

}

else

$q=dechex($p);

if(empty($callback))

$ret.=$q;

else {

$arr=array("htmlHex","htmlDec","escape","u2utf8");

if(is_integer($callback)){

if($callback>count($arr))die("Invalid Function");

$ret.=$this->$arr[$callback-1]($q);

}else

$ret.=$callback($q);

}

}

return $ret;

}

function htmlHex($str){

return "".$str.";";

} // 脚本学堂 www.jbxue.com

function htmlDec($str){

return "".hexdec($str).";";

}

function escape($str){

return hexdec($str)<256?chr(hexdec($str)):"%u".$str;

}

function u2utf8($str){

$sp="!'()*-.0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz~";

$dec=hexdec($str);

$bin=decbin($dec);

$len=strlen($bin);

$arr=array("c0","e0","f0");

if($dec>0x7f){

$ret="";

for($i=$len,$j=-1;$i>=0;$i-=6,$j++){

if($i>6)

$ret="%".dechex(0x80+bindec(substr($bin,$i-6,6))).$ret;

else

$ret="%".dechex(hexdec($arr[$j])+bindec(substr($bin,0,6-$i))).$ret;

}

}else{

if(strpos($sp,chr($dec)))

$ret=chr($dec);

else

$ret="%".strtolower($str);

}

return $ret;

}

}

调用例子:

复制代码 代码示例:

$words="中文Abc";

function ex($str){return "[".$str."]";}

$qswh=new qswhGBK("qswhGBK.php");//如果文件名是qswhGBK.php,可省参数

echo("

不带参数:".$qswh->gb2u($words));

echo("/n调用内置函数htmlHex:".$qswh->gb2u($words,1));

echo("/n调用内置函数htmlDec:".$qswh->gb2u($words,2));

echo("/n调用内置函数escape:".$qswh->gb2u($words,3));

echo("/n调用内置函数u2utf8:".$qswh->gb2u($words,4));

echo("/n调用自定义函数:".$qswh->gb2u($words,ex));

效果:

不带参数:4E2D6587416263

调用内置函数htmlHex:中文Abc

调用内置函数htmlDec:中文Abc

调用内置函数escape:%u4E2D%u6587Abc

调用内置函数u2utf8:%e4%b8%ad%e6%96%87Abc

调用自定义函数:[4E2D][6587][41][62][63]