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

Complexity

Conditions	4
Paths	4

Size

Total Lines	23
Code Lines	12

Duplication

Lines	0
Ratio	0 %

Importance

Changes

0

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

        if (!preg_match('/^\d{10}$/', (string) $input)) {
            return false;
        }

        $weights = [6, 5, 7, 2, 3, 4, 5, 6, 7];
        $digits = array_map('intval', str_split($input));

        $targetControlNumber = $digits[9];
        $calculateControlNumber = 0;

        for ($i = 0; $i < 9; ++$i) {
            $calculateControlNumber += $digits[$i] * $weights[$i];
        }

        $calculateControlNumber = $calculateControlNumber % 11;

        return $targetControlNumber == $calculateControlNumber;
    }