no message

@@ -59,6 +59,7 @@ class Wechat extends Common{
         if (! empty($foot_menu)) {
             foreach ($foot_menu as $k => $v) {
                 $foot_menu[$k]['child'] = '';
+                $wx_menu = db('wx_menu');
                 $second_menu = $wx_menu->where(['instance_id'=>$instance_id,'pid'=>$v['menu_id']])->order('sort asc')->select();
                 if (! empty($second_menu)) {
                     $foot_menu[$k]['child'] = $second_menu;