56 lines
1.3 KiB
PHP
56 lines
1.3 KiB
PHP
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<?php
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/*
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* This file is part of Respect/Validation.
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*
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* (c) Alexandre Gomes Gaigalas <alexandre@gaigalas.net>
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*
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* For the full copyright and license information, please view the LICENSE file
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* that was distributed with this source code.
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*/
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declare(strict_types=1);
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namespace Respect\Validation\Rules;
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use function is_scalar;
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use function preg_match;
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/**
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* Validates PESEL (Polish human identification number).
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*
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* @author Danilo Correa <danilosilva87@gmail.com>
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* @author Henrique Moody <henriquemoody@gmail.com>
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* @author Tomasz Regdos <tomek@regdos.com>
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*/
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final class Pesel extends AbstractRule
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{
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/**
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* {@inheritDoc}
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*/
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public function validate($input): bool
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{
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if (!is_scalar($input)) {
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return false;
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}
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$stringInput = (string) $input;
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if (!preg_match('/^\d{11}$/', (string) $stringInput)) {
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return false;
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}
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$weights = [1, 3, 7, 9, 1, 3, 7, 9, 1, 3];
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$targetControlNumber = $stringInput[10];
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$calculateControlNumber = 0;
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for ($i = 0; $i < 10; ++$i) {
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$calculateControlNumber += (int) $stringInput[$i] * $weights[$i];
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}
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$calculateControlNumber = (10 - $calculateControlNumber % 10) % 10;
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return $targetControlNumber == $calculateControlNumber;
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}
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}
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