Respect\Validation\Rules\Cpf::isValid()

Complexity

Conditions	9
Paths	11

Size

Total Lines	22
Code Lines	10

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	11
CRAP Score	9

Importance

Changes

0

<?php
    public function isValid($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;
    }