WordPress+Nuxt3前后端分离项目，实现不限层级的多维数组菜单

/**
 * 输出菜单为多维数组
 * 不限层级
 *
 * @param [type] $items
 * @param integer $parent_id
 * @return void
 * @DateTime 2023-04-25
 * @Author 萨龙龙 @ admin@salongweb.com
 * @copyright 萨龙网络：https://api.salongweb.com
 * @version 1.0
 */
function salong_convert_menu_items_to_array($items, $parent_id = 0)
{
    $menu_items = array();

    foreach ($items as $item) {
        if ((int) $item->menu_item_parent === $parent_id) {
            $menu_item = array(
                'id'       => $item->ID,
                'title'    => $item->title,
                'url'      => $item->url,
                'children' => array(),
            );

            $children = salong_convert_menu_items_to_array($items, $item->ID);

            if (!empty($children)) {
                $menu_item['children'] = $children;
            }

            $menu_items[] = $menu_item;
        }
    }

    return $menu_items;
}


$menu_locations   = get_nav_menu_locations();                         // 获取换所有菜单项
$header_menu_id   = $menu_locations['header-menu'];                   // 头部菜单 ID
$menu_items       = wp_get_nav_menu_items($header_menu_id);
$menu_items_array = salong_convert_menu_items_to_array($menu_items);

print_r($menu_items_array);