Respect\Validation\Rules\Cpf

Complexity

Total Complexity

9

Size/Duplication

Total Lines	24
Duplicated Lines	0 %

Test Coverage

Coverage

100%

Importance

Changes

0

1 Method

Rating	Name	Duplication	Size	Complexity
C	validate()	0	22	9

<?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.md"
 * file that was distributed with this source code.
 */

declare(strict_types=1);

namespace Respect\Validation\Rules;

class Cpf extends AbstractRule
{
    public function validate($input): bool
    {
        // Code ported from jsfromhell.com
        $c = preg_replace('/\D/', '', $input);

        if (11 != mb_strlen($c) || preg_match("/^{$c[0]}{11}$/", $c)) {
            return false;
        }

        for ($s = 10, $n = 0, $i = 0; $s >= 2; $n += $c[$i++] * $s--);

        if ($c[9] != ((($n %= 11) < 2) ? 0 : 11 - $n)) {
            return false;
        }

        for ($s = 11, $n = 0, $i = 0; $s >= 2; $n += $c[$i++] * $s--);

        if ($c[10] != ((($n %= 11) < 2) ? 0 : 11 - $n)) {
            return false;
        }

        return true;
    }
}