Demonstration

Download a sample .txt file
Download another sample .txt file

Code

In the PHP code, you need to change this line: $files = array("test.txt","test2.txt"); to be the names of all your files.
You should then link to the file to in to following manner <a href="filedownload.php?index=0"> where 0 is the index of the file in the array. So, the link above will download text.txt, and a link like this <a href="filedownload.php?index=1"> would download test2.txt.

filedownload.php 
<?PHP 

#######################################################
# This script is Copyright 2003, Infinity Web Design  #
# Written by Ryan Brill - [email protected]      #
# All Rights Reserved - Do not remove this notice     #
#######################################################

$files = array("test.txt","test2.txt");
$index = $_GET["index"];
$filename = $files[$index];

if (is_file($filename)) {
	header("Content-type: application/octet-stream");
	header("Content-Length: ".filesize($filename));
	header("Content-Disposition: attachment; filename=\"".$filename."\"");
	
	$fp = fopen($filename, 'rb');
	fpassthru($fp);
	fclose($fp);
}
else {
	echo "File not available.";
}

?>


Comments:

Tested in: IE6, Opera 7, NN4.7, NN7, Mozilla Firebird, and Mozilla 1.2.
Works in: IE6, Mozilla Firebird, and NN4.7
Works partialy in: NN7 and Mozilla 1.2
Doesn't work in: Opera 7
In NN7 and Mozilla 1.2, the file downloads, but a .php extention is added.

Copyright© 2003, Infinity Web Design