download a file with php https://stackoverflow.com/questions/7263923/how-to-force-file-download-with-php/32092523#32092523

download.php

<?php

$path='download.php'; // CHANGE IT

$finfo = finfo_open(FILEINFO_MIME_TYPE);
header('Content-Type: '.finfo_file($finfo, $path));

$finfo = finfo_open(FILEINFO_MIME_ENCODING);
header('Content-Transfer-Encoding: '.finfo_file($finfo, $path)); 

header('Content-disposition: attachment; filename="'.basename($path).'"'); 
readfile($path); // do the double-download-dance (dirty but worky)