小编use*_*785的帖子

这是标准Yii2 SearchModel search行动

public function search($params, $cond)
{
    $query = Service::find();

    $dataProvider = new ActiveDataProvider([
        'query' => $query,
    ]);

    $this->load($params);

    $query->where(['param' => $value]); //why this modified after it passed to provider?

    return $dataProvider;
}

为什么theres $query被修改AFTER作为参数传递给ActiveDataProvider它并且它有效？如何用params保持参考$query？