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

Complexity

Conditions	8
Paths	41

Size

Total Lines	21
Code Lines	12

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	13
CRAP Score	8

Importance

Changes

0

<?php
    public function validate($aK)
    {
        if (44 !== mb_strlen($aK)) {
            return false;
        }

        $w = [];
        for ($i = 0, $z = 5, $m = 43; $i <= $m; ++$i) {
            $z = ($i < $m) ? 1 == ($z - 1) ? 9 : ($z - 1) : 0;
            $w[] = $z;
        }

        for ($i = 0, $s = 0, $k = 44; $i < $k; ++$i) {
            $s += $aK[$i]
            * $w[$i];
        }

        $s -= (11 * floor($s / 11));
        $v = (0 == $s || 1 == $s) ? 0 : (11 - $s);

        return $v == $aK[43];
    }