-
-
//php汉字转码
- class qswhU{
- var $qswhData;
- function qswhU($filename="qswhU.php"){
- $this->qswhData=file($filename);
- }
-
- function decode($str,$pattern=0){
- $arr=array("/(/w+);/iU","/((%/w/w)+)/i","/%u(/w{4,5})/iU");
- if(is_integer($pattern)){
- if($pattern>=count($arr))die("Invalid Function");
- $pattern=$arr[$pattern];
- }
- return preg_replace_callback($pattern,array($this,"u2gb"),$str);
- } // 程序员之家 bbs.it-home.org
- function u2gb($arr){
- /******(qiushuiwuhen 2002-8-15)******/
- $ret="";$str=$arr[1];
- if(preg_match_all("/%/w{2}/",$str,$matches)){
- for($i=0;$i $chr1=hexdec(substr($matches[0][$i],1));
- $arr=array("f0","e0","c0","0");
- for($j=0;$jhexdec($arr[$j]))break;
- $chr=hexdec(substr($matches[0][$i],1))-hexdec($arr[$j]);
- while(++$j $str=dechex($chr);
- if(strlen($str)==4){
- $p=hexdec(substr($str,0,2))-0x4d;
- $q=hexdec(substr($str,2))*4;
- $ret.=chr(hexdec(substr($this->qswhData[$p],$q,2)));
- $ret.=chr(hexdec(substr($this->qswhData[$p],$q+2,2)));
- }else
- $ret.=chr(hexdec($str));
- }
- }
- else{
- if(strtolower($str[0])=="x")
- $str=substr($str,1);
- else
- if(strlen($str)!=4)$str=dechex($str);
-
- if(strlen($str)==4){
- $p=hexdec(substr($str,0,2))-0x4d;
- $q=hexdec(substr($str,2))*4;
- $ret.=chr(hexdec(substr($this->qswhData[$p],$q,2)));
- $ret.=chr(hexdec(substr($this->qswhData[$p],$q+2,2)));
- }else
- $ret.=chr(hexdec($str));
- }
- return $ret;
- }
- }
使用实例：
-
- $qswh=new qswhU("qswhU.php");//如果文件名是qswhU.php,可省参数
- echo "<![CDATA[不带参数(默认过滤为：[num];):";]]>
- echo "/n".$qswh->decode("中文Abc");
- echo "/n".$qswh->decode("中文Abc");
- echo "/n调用内置过滤(UTF转码):".$qswh->decode("%E4%B8%AD%E6%96%87%20!%22%23%24%25%26'()*%2B%2C%2F%3A%3B%3C%3D%3E%3F%40%5B%5D%5E%60%7B%7C%7D~%25Abc",1);
- echo "/n调用内置过滤unescape(%u[num]):".$qswh->decode("%u4E2D%u6587Abc",2);
- echo "/n自定义过滤([x+num]):".$qswh->decode("[x4E2D][x6587][x41][x62][x63]","//[(/w+)/]/");
效果如下：
不带参数(默认过滤为：[num];):
中文Abc
中文Abc
调用内置过滤(UTF转码):中文 !"#$%&'()*+,/:;?@[]^`{|}~%Abc
调用内置过滤unescape(%u[num]):中文Abc
自定义过滤([x+num]):中文Abc
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