我在函数中添加了此代码。php检索菜单并将其转换为可读的数组，但它不起作用，请给出此警告。警告：为foreach（）inC:\\xampp\\htdocs\\Upwork\\wp content\\themes\\truckloanhub\\functions提供的参数无效。phpon线路117

警告：为foreach（）inC:\\xampp\\htdocs\\Upwork\\wp content\\themes\\truckloanhub\\functions提供的参数无效。phpon线路127

function wp_get_menu_array($current_menu) {



$array_menu = wp_get_nav_menu_items($current_menu);
   $menu = array();
   foreach ($array_menu as $m) {
       if (empty($m->menu_item_parent)) {
           $menu[$m->ID] = array();
           $menu[$m->ID][\'ID\']      =   $m->ID;
           $menu[$m->ID][\'title\']       =   $m->title;
           $menu[$m->ID][\'url\']         =   $m->url;
           $menu[$m->ID][\'children\']    =   array();
       }
   }
   $submenu = array();
   foreach ($array_menu as $m) {
       if ($m->menu_item_parent) {
           $submenu[$m->ID] = array();
           $submenu[$m->ID][\'ID\']       =   $m->ID;
           $submenu[$m->ID][\'title\']    =   $m->title;
           $submenu[$m->ID][\'url\']  =   $m->url;
           $menu[$m->menu_item_parent][\'children\'][$m->ID] = $submenu[$m->ID];
       }
   }
   return $menu;