where(['uid' => $uid, 'readtime' => 0])->order('id asc')->limit(20)->select(); if ($rets) { foreach ($rets as $val) { $val->readtime = time(); $val->save(); } } else { return json(['code' => 1, 'data' => [], 'msg' => 'success']); } return json(['code' => 1, 'data' => $rets, 'msg' => 'success']); } }