BoneFletcher

header('X-Accel-Redirect: ' . $file);
header('Content-Type: application/octet-stream');
header('Content-Disposition: attachment; filename=' . basename($file));
exit;

header('X-SendFile: ' . realpath($file));
header('Content-Type: application/octet-stream');
header('Content-Disposition: attachment; filename=' . basename($file));
exit;