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Force File Download with PHP
* Foce File Download
* Usage:
* There are a couple of *ninja* exit() as security guarantee, adapt as necessary
// grab the requested file's name
$file_name = $_GET['file'];
// make sure it's a file before doing anything!
if( !is_file($file_name) )
// required for IE
ini_set('zlib.output_compression', 'Off');
// get the file mime type using the file extension
case 'pdf': $mime = 'application/pdf'; break;
case 'zip': $mime = 'application/zip'; break;
case 'jpeg':
case 'jpg': $mime = 'image/jpg'; break;
default: exit();
header('Pragma: public'); // required
header('Expires: 0'); // no cache
header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
header('Last-Modified: '.gmdate ('D, d M Y H:i:s', filemtime ($file_name)).' GMT');
header('Cache-Control: private',false);
header('Content-Type: '.$mime);
header('Content-Disposition: attachment; filename="'.basename($file_name).'"');
header('Content-Transfer-Encoding: binary');
header('Content-Length: '.filesize($file_name)); // provide file size
header('Connection: close');
readfile($file_name); // push it out
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