Respect\Validation\Rules\Bsn::validate()

Complexity

Conditions	5
Paths	6

Size

Total Lines	16
Code Lines	8

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	9
CRAP Score	5

Importance

Changes

0

<?php
    public function isValid($input): bool
    {
        if (!ctype_digit($input)) {
            return false;
        }

        if (9 !== mb_strlen($input)) {
            return false;
        }

        $sum = -1 * $input[8];
        for ($i = 9; $i > 1; --$i) {
            $sum += $i * $input[9 - $i];
        }

        return 0 !== $sum && 0 === $sum % 11;
    }