写入文件后缀！！斑竹帮忙啊  
  
现在上传后的文件保存为0PW38Wfbl8.wma.file
我希望保存的文件是0PW38Wfbl8.wma.wma.file


提取文件页是[url]http://www.[/url]
我希望提取文件页是[url]http://www.[/url]

就是希望把后缀加进去啊，斑竹帮忙啊


<?php
require   'global.php';
require   'config.php';
require   'db.php';

$a=strtolower(fileext($_FILES['file']['name']));

if(!in_array(strtolower(fileext($_FILES['file']['name'])),$type))
{
$text=implode(",",$type);
echo   "Allowed     file   type     :   ",$text," <br> ";
}
else
{


$filename=explode(".",$_FILES['file']['name']);
do{
$filename[0]=random(10);   
$name=implode(".",$filename);
$name1=$name.".file";
$uploadfile=$uploaddir.$name1;

}
while(file_exists($uploadfile));

if   (move_uploaded_file($_FILES['file']['tmp_name'],$uploadfile))   {
$db=new   db;
$db-> connect($dbhost,   $dbuser,   $dbpwd,   $dbname);
$sql="insert   into   list   (code,file)   values   ('".$filename[0]."','".$name1."')";

if($db-> query($sql))
{echo   " <center> The   fast   download   URL:   <p> ".$patch."link.php?ref=",$filename[0].$filename[1]," </center> <p> <hr> ";}
else{echo   "失败！请刷新或重传";}
}

}

?>