Sometime you want to restrict parts of your plugin using additional permissions management, since this is quite easy, hiding menu items can be a bit tricky – you need to know root menu url, and submenu url. So where to get them? Somewhere just put this:

so you will get list of all available items (wordpress is calling them “menu slugs”) like this:

    [edit.php?post_type=page] => Array
        (
            [5] => Array
                (
                    [0] => All Pages
                    [1] => edit_pages
                    [2] => edit.php?post_type=page
                )

            [10] => Array
                (
                    [0] => Add New
                    [1] => edit_pages
                    [2] => post-new.php?post_type=page
                )

        )

and we have all stuff needed – array key is menu slug (root menu hook), array item with key 2 is sub menu slug, so to hide it just use:

and put this along with permissions checking in:

this way at each admin’s init your permission will be checked, and unnecessary items will be removed.