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<?php
/*
* This file is part of Respect/Validation.
*
* (c) Alexandre Gomes Gaigalas <[email protected]>
* For the full copyright and license information, please view the "LICENSE.md"
* file that was distributed with this source code.
*/
declare(strict_types=1);
namespace Respect\Validation\Rules;
use function ctype_digit;
/**
* Validates whether the input contains only digits.
* @author Alexandre Gomes Gaigalas <[email protected]>
* @author Henrique Moody <[email protected]>
* @author Nick Lombard <[email protected]>
final class Digit extends AbstractFilterRule
{
* {@inheritdoc}
protected function validateFilteredInput(string $input): bool
return ctype_digit($input);
}