问如何截断wordpress中的菜单标签？

EN

    function filter_nav_menu_item_title( $title, $item, $args, $depth ) { 
        $truncLength = 10;
        if (strlen($title) > $truncLength) {
            return substr($title, 0, $truncLength) . "...";
        } else {
            return $title;
        } 
    }
         
    // add the filter 
    add_filter( 'nav_menu_item_title', 'filter_nav_menu_item_title', 10, 4 );