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

55 lines
1.2 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 DateTimeInterface;
use function date;
use function is_numeric;
use function is_scalar;
use function sprintf;
use function strtotime;
/**
* Validates if a year is leap.
*
* @author Danilo Correa <danilosilva87@gmail.com>
* @author Henrique Moody <henriquemoody@gmail.com>
* @author Jayson Reis <santosdosreis@gmail.com>
*/
final class LeapYear extends AbstractRule
{
/**
* {@inheritDoc}
*/
public function validate($input): bool
{
if (is_numeric($input)) {
$date = strtotime(sprintf('%d-02-29', (int) $input));
return (bool) date('L', (int) $date);
}
if (is_scalar($input)) {
return $this->validate((int) date('Y', (int) strtotime((string) $input)));
}
if ($input instanceof DateTimeInterface) {
return $this->validate($input->format('Y'));
}
return false;
}
}