Laravel Base64 Validator

Install

composer require "penance316/laravel-base64-validator"

Add the required validator to boot method of app/Providers/AppServiceProvider.php

Validator::extend('base64', 'Penance316\Validators\Base64Validator@validateBase64');

Add the following lines to resources/lang/en/validation.php

'base64' => 'The :attribute must be a valid Base64 string.',

Use like other validators

...
'reference'     => 'required|max:255',
'data'          => 'required|base64',
'email'         => 'required|email',
...

Test

Use vendor phpunit

./vendor/phpunit/phpunit/phpunit --testdox