WP_Customize_Nav_Menu_Item_Setting::sort_wp_get_nav_menu_items() WordPress Method

	public static function sort_wp_get_nav_menu_items( $items, $menu, $args ) {
		// @todo We should probably re-apply some constraints imposed by $args.
		unset( $args['include'] );

		// Remove invalid items only in front end.
		if ( ! is_admin() ) {
			$items = array_filter( $items, '_is_valid_nav_menu_item' );
		}

		if ( ARRAY_A === $args['output'] ) {
			$items = wp_list_sort(
				$items,
				array(
					$args['output_key'] => 'ASC',
				)
			);
			$i     = 1;

			foreach ( $items as $k => $item ) {
				$items[ $k ]->{$args['output_key']} = $i++;
			}
		}

		return $items;
	}