Force download file with Get option and generates GA event

download.php

<?php 
// ---------------------------------
// File: 	download.php
// Author: 	Jim Penaloza
// Web:		http://blog.unijimpe.net
// ---------------------------------

// verify file
if (!isset($_GET['file']) || empty($_GET['file'])) {
	exit();
}
// get filename
$root = "";
$file = basename($_GET['file']);
$path = $root.$file;
$type = '';


/* Google Analytics */

include 'ss-ga.class.php';
$ssga = new ssga( 'UA-XXXXX-XXX', 'domain.com' );
$ssga->set_event( 'Category', 'Tag', $file, '10' );
$ssga->send();



if (is_file($path)) {
	$size = filesize($path); 
	if (function_exists('mime_content_type')) {
		$type = mime_content_type($path);
	} else if (function_exists('finfo_file')) {
		$info = finfo_open(FILEINFO_MIME);
		$type = finfo_file($info, $path);
		finfo_close($info);  
	}
	if ($type == '') {
		$type = "application/force-download";
	}
	// Set Headers
	header("Content-Type: $type");
	header("Content-Disposition: attachment; filename=\"$file\"");
	header("Content-Transfer-Encoding: binary");
	header("Content-Length: " . $size);
	// Download File
	readfile($path);
} else {
	die("File not exist !!");
}