public function actionAdminsearchmoment()
 {
     if (!isset($_GET["searchmoment"]) || empty($_GET["searchmoment"])) {
         echo '{"success":false,"msg":"请输查询入内容"}';
         return;
     }
     $input = \yii\helpers\Html::encode($_GET["searchmoment"]);
     $moments = new Moments();
     $result = $moments->getPageMomentWithOrder_2($input, 1, 6);
     echo $result;
 }