respect-validation/library/Rules/IntVal.php
2021-05-05 13:34:57 +02:00

46 lines
1 KiB
PHP

<?php
/*
* This file is part of Respect/Validation.
*
* (c) Alexandre Gomes Gaigalas <alexandre@gaigalas.net>
*
* For the full copyright and license information, please view the LICENSE file
* that was distributed with this source code.
*/
declare(strict_types=1);
namespace Respect\Validation\Rules;
use function is_int;
use function is_string;
use function preg_match;
/**
* Validates if the input is an integer.
*
* @author Adam Benson <adam.benson@bigcommerce.com>
* @author Alexandre Gomes Gaigalas <alexandre@gaigalas.net>
* @author Andrei Drulchenko <andrdru@gmail.com>
* @author Danilo Benevides <danilobenevides01@gmail.com>
* @author Henrique Moody <henriquemoody@gmail.com>
*/
final class IntVal extends AbstractRule
{
/**
* {@inheritDoc}
*/
public function validate($input): bool
{
if (is_int($input)) {
return true;
}
if (!is_string($input)) {
return false;
}
return preg_match('/^-?\d+$/', $input) === 1;
}
}