Не возможно скачать файл после его загрузки на сервер

<?php
$uploaddir = $UPLOAD_DIR."/";
$fn1 = $_FILES['myfile']['name'];
$fn2 = str_replace(" ","_",$fn1);
$uploadfile = $uploaddir.$fn2;
$fid = substr(md5(rand(0,100000)), 0, 10);
$uploadfile = $uploaddir.$fid."-".$fn2;
$res = move_uploaded_file($_FILES['myfile']['tmp_name'], $uploadfile);
$up = str_replace($uploaddir,"",$uploadfile);
echo "$up";
?>

<?php
 
include("mainframes.inc");
 
$id = $_GET['id'];
$fu1 = $_GET['fu1'];
$fu2 = $_GET['fu2'];
$tu1 = $_GET['tu1'];
$tu2 = $_GET['tu2'];
$tp = $_GET['tp'];
 
 
 
 
switch($tp){
case "wn":
$queryFILE = "SELECT * FROM attach WHERE task_id='$id' AND ((from_user='$fu1' AND to_user='') OR (from_user='$fu1' AND to_user='$tu2') OR (from_user='$tu2' AND to_user='$fu1'))";
break;
case "th":
$queryFILE = "SELECT * FROM attach WHERE task_id='$id' AND ((from_user='$fu1' AND to_user='') OR (from_user='$fu1' AND to_user='$tu1') OR (from_user='$tu1' AND to_user='$fu1'))";
break;
}
 
 
//trace($queryFILE);
 
$resultFILE = mq($queryFILE);
if ($resultFILE){ // rf
 
$rowsFILE = rmnr($resultFILE);
 
$sn = $_SERVER['SERVER_NAME'];
//trace($sn);
 
 
if ($rowsFILE > 0){ // rof
 
echo "
<div style=\"\">
<ol>
";
 
for ($fl=$rowsFILE-1; $fl>=0; $fl--){
 
$from_user = mr($resultFILE,$fl,"from_user");
$name = mrc($resultFILE,$fl,"name");
$fid = mrc($resultFILE,$fl,"file_id");
 
$ec = "<li><a href=\"".$UPLOAD_DIR."/".$fid."-".$name."\" target=\"_blank\">".$name."</a></li>";
 
//if ($server == "clubchat.ru"){
//$ec = $ec;
//} else {
$ec = $ec;
//}
 
echo $ec;
 
}
 
echo "
</ol>
</div>
";
 
} else { // rof
//if ($server == "clubchat.ru"){
msg("","Нет загруженных файлов");
//} else {
//msg("",cod("Нет загруженных файлов","wu"));
//}
} // rof
 
 
} else { // rf
msg("error","mysql");
} // rf
 
 
?>