Get directories

[The Little Guy]

Anyone know how I could list all the directories in a specific directory? I then want all their sub directories, and sub directories of the sub directories, and so on.

I want this as the root directory:
[b][color=red]$_SERVER['DOCUMENT_ROOT'].'/users/'.$_SESSION['user'];[/color][/b]

[Orio]

And how do you want to get the info, in a one big multi-dimensional array? Or maybe just a list with all of the dirs names?

Orio.

[The Little Guy]

I would like to get it any way possible, the faster the better, and the easier to manage the better.

Basically it will be used for users to look at all the folders they currently own, and delete the ones they don't want. So that means there will be two pages, one for the displaying, and one for the deleting.

I currently have this, but it doesn't work, it only works for certain directories, which I didn't understand, so... yeh...
[code]
<?php
$dir = $_SERVER['DOCUMENT_ROOT'].'/users/'.$_SESSION['user'];
$files = scandir($dir, 1);
foreach($files as $file){
if(is_dir($file) && $file != '.' && $file != '..'){
echo '<strong class="bigger">'.$file.'</strong>';
}
}
?>
[/code]