Laravel validation - input must be one of items in array

Question

Is there a built in validator in Laravel 5 that checks if value is in array of my whitelisted values sort of speak.. Something like:

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

Answer 1

There's in

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