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vendor/workerman/validation/library/Rules/Pesel.php

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+<?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_scalar;
+use function preg_match;
+
+/**
+ * Validates PESEL (Polish human identification number).
+ *
+ * @author Danilo Correa <danilosilva87@gmail.com>
+ * @author Henrique Moody <henriquemoody@gmail.com>
+ * @author Tomasz Regdos <tomek@regdos.com>
+ */
+final class Pesel extends AbstractRule
+{
+    /**
+     * {@inheritDoc}
+     */
+    public function validate($input): bool
+    {
+        if (!is_scalar($input)) {
+            return false;
+        }
+
+        $stringInput = (string) $input;
+        if (!preg_match('/^\d{11}$/', (string) $stringInput)) {
+            return false;
+        }
+
+        $weights = [1, 3, 7, 9, 1, 3, 7, 9, 1, 3];
+
+        $targetControlNumber = $stringInput[10];
+        $calculateControlNumber = 0;
+
+        for ($i = 0; $i < 10; ++$i) {
+            $calculateControlNumber += (int) $stringInput[$i] * $weights[$i];
+        }
+
+        $calculateControlNumber = (10 - $calculateControlNumber % 10) % 10;
+
+        return $targetControlNumber == $calculateControlNumber;
+    }
+}