Laravel 模型列表方法返回列的所有值

Laravel Model lists method return all the value of the column

提问by caoglish

a model defined like this:

一个像这样定义的模型：

class Model extends Eloquent {
        protected $table='model';
    }

then I query like:

然后我查询如下：

$model=Model::find(2);
$model->id;//return 2;
$model->lists('id');//return array contains all the ids in model table like ['1','2','3',...]. not ['2'];

so, I though the lists method should only contains array which only has ids was found. why it has all the id of model table.

所以，我虽然lists方法应该只包含只找到id的数组。为什么它具有模型表的所有 id。

and which Class API in Laravel API doc I should look after?

我应该关注 Laravel API 文档中的哪个类 API？

回答by ceejayoz

Per the docs, the lists function fetches a list of column values for the table. Calling it in this manner is essentially running a brand new query.

根据docs，lists 函数获取表的列值列表。以这种方式调用它本质上是运行一个全新的查询。