向mysql数据库同时插入10000条数据便于测试的代码有人能帮助一下吗? [ 2.0 版本 ]

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

Yii::$app->db->createCommand()->batchInsert(UserModel::tableName(), ['user_id','username'], [
    ['1','test1'],
    ['2','test2'],
    ['3','test3'],   
])->execute();