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

61 lines
1.5 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 ord;
use function preg_match;
/**
* Validates whether the input is a Polish identity card (Dowód Osobisty).
*
* @see https://en.wikipedia.org/wiki/Polish_identity_card
*
* @author Henrique Moody <henriquemoody@gmail.com>
*/
final class PolishIdCard extends AbstractRule
{
private const ASCII_CODE_0 = 48;
private const ASCII_CODE_7 = 55;
private const ASCII_CODE_9 = 57;
private const ASCII_CODE_A = 65;
/**
* {@inheritDoc}
*/
public function validate($input): bool
{
if (!preg_match('/^[A-Z0-9]{9}$/', $input)) {
return false;
}
$weights = [7, 3, 1, 0, 7, 3, 1, 7, 3];
$weightedSum = 0;
for ($i = 0; $i < 9; ++$i) {
$code = ord($input[$i]);
if ($i < 3 && $code <= self::ASCII_CODE_9) {
return false;
}
if ($i > 2 && $code >= self::ASCII_CODE_A) {
return false;
}
$difference = $code <= self::ASCII_CODE_9 ? self::ASCII_CODE_0 : self::ASCII_CODE_7;
$weightedSum += ($code - $difference) * $weights[$i];
}
return $weightedSum % 10 == $input[3];
}
}