CODE EXAMPLE FOR PHP

match uuid patter laravel regex

Validator::extend('uuid', function ($attribute, $value, $parameters, $validator) {
    return preg_match('/[a-f0-9]{8}-[a-f0-9]{4}-4[a-f0-9]{3}-(8|9|a|b)[a-f0-9]{3‌​}-[a-f0-9]{12}/', $value);
});