docs:programming:php:direct_file_download [hartungdesign.net wiki]

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====== Direct File Download ======
The goal is to provide users with a file download, directly in a php script rather than a hard link on a remote filesystem.  This allows us to implement user authentication prior to any files being available.

FIXME All of this will likely work, but so far is untested

<code php>
<?
$dir="/path/to/file/";
if (isset($_REQUEST["file"])) {
    $file=$dir.$_REQUEST["file"];
    header("Content-type: application/force-download");
    header("Content-Transfer-Encoding: Binary");
    header("Content-length: ".filesize($file));
    header("Content-disposition: attachment; filename=\"".basename($file)."\"");
    readfile("$file");
} else {
    echo "No file selected";
}
?> 
</code>

===== External Links =====
  * http://www.trailfire.com/pages/form.php?aid=check&bubble=14947
  * http://elouai.com/force-download.php