yii2一次插入多行数据

yii2一次插入多行数据
 /**
     * @inheritdoc  批量添加
     * @params   $add  array 添加数据
     */
    public function add_all($add)
    {
      $connection = Yii::$app->db;
      //数据批量入库
      $connection->createCommand()->batchInsert(
        "zss_stat_series",
        ["series_name","series_turnover","created_at"],//字段
        $add
      )->execute();
    }

或者

$model = new User();
foreach($data as $attributes)
{
     $_model = clone $model;
     $_model->setAttributes($attributes);
     $_model->save();
}

又或者

$model = new User();
foreach($data as $attributes)
{
      $model->isNewRecord = true;
      $model->setAttributes($attributes);
      $model->save() && $model->id=0;
}