Laravel validator passing array when null

Question

I've got basic laravel validator for my request:

    $validator = Validator::make($request->all(), [
        'speciality' => 'required|array|min:1',
    ]);
    if ($validator->fails()) {
        return response([
            'status' => 'error',
            'error' => 'invalid.credentials',
            'message' => 'error validation'
        ], 400);
    }

speciality should be an array, so I define it as required|array|min:1

The problem is when my request has an empty array with null inside: speciality: [ null ] and this somehow passes my validator.

How can I correct it to catch this case?

omitobi · Accepted Answer · 2018-08-06 18:05:45Z

6

Using dot to access the underlying elements/values:

$validator = Validator::make($request->all(), [
    'speciality' => 'required|array|min:1',
    'speciality.*' => 'required' //ensures its not null
]);

See the Validation: Validating Arrays section of the documentation.

Notice that [null] in not an empty array, that's why your initial validation was passed. You can verify this doing:

dd(empty([null]));

This will output:

false

edited Aug 6, 2018 at 18:05

answered Aug 6, 2018 at 17:48

omitobi

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2 Comments

Kenny Horna Over a year ago

@gileneusz just to complement, notice that [null] in not an empty array, that's why your initial validation was passed. You can verify this doing: dd(empty([null]);

omitobi Over a year ago

@HCK nice catch there. Can you help update the answer with your comment?

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