<?php
// File: descarga.php
header('Content-type: application/png');
if (!isset($_GET['file']) || empty($_GET['file'])) {
    exit();
}
$root = "./";
$file = basename($_GET['file']);
$type = $_GET['type'];
$path = $root.$type."/".$file;
$type = '';
 
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 $path not exist !!");
}
?>