site_id] ]; $list = $help->getHelpClassList($condition, 'class_id, class_name', 'sort asc, create_time desc'); $order = 'sort asc, create_time desc'; $field = 'id,title,link_address'; if (!empty($list['data'])) { foreach ($list['data'] as $k => $v) { $condition = [ ['class_id', '=', $v['class_id']], ['site_id', '=', $this->site_id] ]; $child_list = $help->getHelpList($condition, $field, $order); $child_list = $child_list['data']; $list['data'][$k]['child_list'] = $child_list; } } return $this->response($list); } }