public function getUserRoles($user_id)
    {
        $roles = array();

        foreach ((array) get_sites() as $site) {

            //Get user role
            if ($site->blog_id != 1) {
                $userSettings = get_user_meta($user_id, $this->db->prefix . $site->blog_id . '_capabilities', true);
            } else {
                $userSettings = get_user_meta($user_id, $this->db->prefix . 'capabilities', true);
            }

            //Store to settings array
            if (is_array($userSettings)) {
                $roles[$site->blog_id] = key($userSettings);
            } else {
                $roles[$site->blog_id] = false;
            }
        }

        return $roles;
    }