Get the length of an array using closure validation

Question

What I am trying to do is to get the length of an array inside closure Laravel validation.

Here is what I have tried:

        'attachment' => 'max:10',
        'attachment.*' => 'max:10240|mimes:jpeg,jpg,pdf',

        'deletedAttachments' => ['nullable', 'array', 'max:10', function($attribute, $value, $fail) {
            $fail(count($this->input('attachment')));
        }],

Unfortunately, This did not work and I am getting the following error:

Illuminate\Translation\PotentiallyTranslatedString::__toString(): Return value must be of type string, null returned

Where are you running this validation (controller, form request, etc ...)? And please explain what are you exactly trying to do. — Eyad Bereh
– Eyad Bereh, Commented Apr 4, 2024 at 1:49

Malvin Lok · Accepted Answer · 2024-04-04 03:08:12Z

1

as I remember, Laravel validation should give the data type first, maybe you could try:

[
'attachment' => 'array|max:10',
'attachment.*' => 'file|mimes:jpeg,jpg,pdf|max:10240',
//...other codes
]

answered Apr 4, 2024 at 3:08

Malvin Lok

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1 Comment

Bu Saeed Over a year ago

The issue was from the client side. Your answer is useful though. Thank you.

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