Access a file which is located before / outside the server root directory?

I'm making an intranet for a post-sale customer service entreprise. Employee need to be able to upload img files to the intranet's server and i need to store them in a directory with is BEFORE www (the website's root directory).

Doing this using php is pretty easy but how to include these imgs on the website once they're uploaded ? I tried this code

<img src="../img/img.png"/>

This is not working because i can't send a file if it is OUTSIDE the server's www directory ...

Is there any proper way to do that ?

Current treeview :

server root directory
           |www
               |(all server files)
           |img
               |(all img files)

(the server's index.php is located in www and the files are in img)

You cannot directly access any file outside your web directory. As your question includes the tag PHP as well, I assume you may want to use it.

What you can do is the following:

Inside your www directory, create a "image.php" file, with a similar content to:

<?php
  header('Content-Type: image/png');
  readfile("../img/" . basename($_GET['img']));
?>

And call your images with

<img src="image.php?img=myimage.png" />

Please be aware that your PHP file shouldn't be that simple :) As you may want to address multiple image formats (and providing the correct header for them), checking for malicious file path/inclusions (you don't want to use $_GET without validating/sanitizing the input), extra caching etc. etc. etc.

But this should give you an idea on how you can target your issue.