hide a folder path when user downloads a file - php

Question

I am using wordpress for my website and there are some wallpapers in my folder which i provide for download . But i dont want users to know the exact file location of folder . As there is a subscription for the download.
suppose my file is stored in
http://www.example.com/wp-content/example.folder/awesome.png
Now how to hide the folder name example.folder and use any fake name, That dosent shows up while downloading . Really need a big help on this. can anyone suggest me a good method. I tried some wordpress plugins , but no help on this.

Answer 1

Example With PDF doc
$nameOld = "/public_html/wp-content/example.folder/oldnme.pdf";
$nameNew = "newName.pdf" ;
header("Content-Transfer-Encoding: binary");
header('Content-type: application/pdf');
header("Content-disposition: attachment; filename=$nameNew"); //
readfile($nameOld);
Edit
Prove of Concept for your image system using download.php?img=flower without the extension and flower show be the image name
$directory = "/public_html/wp-content/example.folder/";
$types = array("jpg","gif","png");
$ext = null;
if (! isset($_GET['img'])) {
die("Invalid URL");
}
$nameOld = filter_var($_GET['img'], FILTER_SANITIZE_STRING, FILTER_FLAG_STRIP_HIGH | FILTER_FLAG_STRIP_LOW);
$nameNew = uniqid(basename($nameOld));
// File the file
foreach ( $types as $type ) {
if (is_file($nameOld . "." . $type)) {
$ext = $type;
break;
}
}
if ($ext == null) {
die("Sorry Image Not Found");
}
$nameOld .= "." . $ext;
$type = image_type_to_mime_type(exif_imagetype($nameOld));
header("Content-Transfer-Encoding: binary");
header('Content-type: ' . $type);
header("Content-disposition: attachment; filename=$nameNew"); //
readfile($nameOld);