PHP Download ZIP file and Hide Download URL

Download.php

<?php
$path = 'file.zip'; //Path to File
$filedownloadname = 'downloadfilename.zip';  //File Name when downloading

header("Pragma: public");
header("Expires: 0");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Cache-Control: public");
header("Content-Description: File Transfer");
header("Content-Type: " . $mime_type);
header('Content-Disposition: attachment; filename="'. $filedownloadname .'"');
header("Content-Transfer-Encoding: binary\n");

readfile($path); 
exit();