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   //Îļþ¶ÁÈ¡º¯Ê½
   function PHP_Read($file_name) {
   $fd=fopen($file_name,r);
   while($bufline=fgets($fd, 4096)){
   $buf.=$bufline;
    }
   fclose($fd);
   return $buf;
    }
   ?>
ÎļþдÈ뺯ʽ
    //ÎļþдÈ뺯ʽ
   function PHP_Write($file_name,$data,$method="w") {
   $filenum=@fopen($file_name,$method);
   flock($filenum,LOCK_EX);
   $file_data=fwrite($filenum,$data);
   fclose($filenum);
   return $file_data;
    }
   ?>
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   //¾²Ì¬Ò³ÃæÉú³Éº¯Ê½
   function phptohtm($filefrom,$fileto,$u2u=1){
   if($u2u==1){
   $data=PHP_Read($filefrom);
    }else{
   $data=$filefrom;
    }
   PHP_Write($fileto,$data);
   return true;
    }
   ?>
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    //Ö¸¶¨Ìõ¼þÐÅÏ¢ÊýÁ¿¼ìË÷º¯Ê½
   function rec_exist($table,$where){
   $query="select count(*) as num from $table ".$where;
   $result=mysql_query($query) or die(nerror(1));
   $rowcount=mysql_fetch_array($result);
   $num=$rowcount["num"];
   if ($num==0){
   return false;
    }
   return $num;
    }
   ?>
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   function del_DIR($directory){
   $mydir=dir($directory);
   while($file=$mydir->read()){
   if((is_dir("$directory/$file")) AND ($file!=".") AND ($file!="..")){
   del_DIR("$directory/$file");
    }else{
   if(($file!=".") AND ($file!="..")){
   unlink("$directory/$file");
   //echo "unlink $directory/$file ok ";
    }


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function random($length) {
 $hash = '';
 $chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyz';
 $max = strlen($chars) - 1;
 mt_srand((double)microtime() * 1000000);
 for($i = 0; $i < $length; $i++) {
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