RTMediaAdmin::save_multisite_options PHP Method

        public function save_multisite_options()
        {
            global $rtmedia_admin;
            do_action('rtmedia_sanitize_settings', wp_unslash($_POST));
            // @codingStandardsIgnoreLine
            $rtmedia_options = filter_input(INPUT_POST, 'rtmedia_options');
            if (isset($rtmedia_options)) {
                //todo: How we can sanitize array?
                rtmedia_update_site_option('rtmedia_options', $rtmedia_options);
                //
                // redirect to settings page in network
                wp_redirect(esc_url_raw(add_query_arg(array('page' => 'rtmedia-settings', 'updated' => 'true'), is_multisite() ? network_admin_url('admin.php') : admin_url('admin.php'))));
                exit;
            }
        }