zlibproxy/vendor/workerman/validation/library/Rules/Even.php
2023-01-02 19:56:44 +08:00

41 lines
861 B
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 filter_var;
use const FILTER_VALIDATE_INT;
/**
* Validates whether the input is an even number or not.
*
* @author Henrique Moody <henriquemoody@gmail.com>
* @author Jean Pimentel <jeanfap@gmail.com>
* @author Paul Karikari <paulkarikari1@gmail.com>
*/
final class Even extends AbstractRule
{
/**
* {@inheritDoc}
*/
public function validate($input): bool
{
if (filter_var($input, FILTER_VALIDATE_INT) === false) {
return false;
}
return (int) $input % 2 === 0;
}
}