Laravel验证 - 输入必须是数组中的项之一

Question

Laravel 5中是否有一个内置的验证器,用于检查值是否在我列入白名单的值的数组中.有点类似于:

$rules = [
    'field_name' => "required|in_array('yes', 'no', 'maybe')",
];

Answer 1

有 in

$rules = [
    'field_name' => "required|in:yes,no,maybe",
];

Answer 2

Laravel 5.7

use Illuminate\Validation\Rule;

Validator::make($data, [
    'field_name' => [
        'required',
        Rule::in(['yes', 'no', 'maybe']),
    ],
]);