Array
(
    [media] => Array
        (
            [documents] => Array
                (
                    [0] => add.php
                )
            [music] => Array
                (
                    [albums] => Array
                        (
                            [0] => add.php
                        )
        )
    [overview] => Array
        (
            [0] => overview.php
        )
)

<ul>
    <li>Media
        <ul>
            <li>Documents
                <ul>
                    <li><a href="/media/documents/add.php">Add</a></li>
                </ul>
            </li>

            <li>Music
                <ul>
                    <li>Albums
                        <ul>
                            <li><a href="/media/music/albums/add.php">Add</a></li>
                        </ul>
                    </li>
                </ul>
            </li>
        </ul>
    </li>

    </li>Overview
        <ul>
            <li><a href="/overview/overview.php">Overview</a></li>
        </ul>
    </li>
</ul>