validation on exact length of numeric field in laravel 5

Question

I have numeric field i want to validate on exact fill 4 digits.

like: 1234, 4567,1245

but these invalid inputs: like: 123, 346, 45m6, 34567

what I am trying:

'last4digits'             => 'numeric|between:4,4',

Answer 1

You are looking for the digits rule. From the docs:

The field under validation must be numeric and must have an exact length of value.

'last4digits' => 'digits:4'