Question

I have spent hours looking for a way to make a custom admin menu visable to admins and a custom user role I made called moderators. The menu only appears for admins and not the moderators. How can I make it display for both user types?

functions.php

add_role( 'moderator', 'Moderator', array(
        'read' => true,
        'add_users'
    ));

    add_action('admin_menu', 'staff_menu');

    function staff_menu() {
       add_menu_page('Staff Menu: Options', 'Staff Menu', 'add_users', 'staff', 'staff_page', "favicon.ico", 3);
    }

    function staff_page(){
       echo "Staff Page Test will have options here";
    }

Answer 1

You forgot to give the add_users a value of true. The docs for add_user show that you need to pass a value, probably a boolean.

add_role( 'moderator', 'Moderator', array(
        'read' => true,
        'add_users' => true
    ));

---

Update: Check to see if the admin role still has the add_users capability.

$admin_role = get_role('admin');
var_dump($admin_role->has_cap('add_users'));