怎么样用Eloquent ORM 返回某列数组并转成数组?

Question

$roleIdArr   = $userRoleObj->select("role_id")->where(['uid' => $uid])->get()->toArray();

返回:

Array
(
    [0] => Array
        (
            [role_id] => 1
        )

    [1] => Array
        (
            [role_id] => 2
        )

)

怎么让这个返回结果改成:

Array
(
    [0] => 1
    [1] => 2
)

Answer 1

$roleIdArr = $userRoleObj->where(['uid' => $uid])->pluck('role_id')->toArray();

@ref
https://laravel.com/docs/7.x/...