Download über .php

[garwga]

Dateigröße ist egal, Serverbelastung ist auch nicht grade erwähnenswerd.
Falls du ein Script suchst:

<?php 
download("1a24f21s123f1d.rar","datei.rar");

function download($filename,$angezeigterfilename){
$filename = "/files/123asdf23/".$filename;

$filename = realpath($filename);
$file_extension = strtolower(substr(strrchr($filename,"."),1)); 

if (! file_exists( $filename ) ) 
{ 
die("NO FILE HERE");
}
switch( $file_extension ) 
{ 
case "pdf": $ctype="application/pdf"; break; 
case "exe": $ctype="application/octet-stream"; break; 
case "zip": $ctype="application/zip"; break; 
case "doc": $ctype="application/msword"; break; 
case "xls": $ctype="application/vnd.ms-excel"; break; 
case "ppt": $ctype="application/vnd.ms-powerpoint"; break; 
case "gif": $ctype="image/gif"; break; 
case "png": $ctype="image/png"; break; 
case "jpe": case "jpeg": 
case "jpg": $ctype="image/jpg"; break; 
default: $ctype="application/force-download"; 
} 
header("Pragma: public");
header("Expires: 0"); 
header("Cache-Control: must-revalidate, post-check=0, pre-check=0"); 
header("Cache-Control: private",false);
header("Content-Type: $ctype"); 
header("Content-Disposition: attachment; filename=$angezeigterfilename;" ); 
header("Content-Transfer-Encoding: binary"); 
header("Content-Length: ".@filesize($filename)); 
@readfile("$filename") or die("File not found."); 
exit(); 
}
?>

Sollte eigtl. selbsterklärend sein.
MfG,
garwga