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

Complexity

Conditions	8
Paths	41

Size

Total Lines	22
Code Lines	13

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	15
CRAP Score	8

Importance

Changes	1
Bugs	0	Features	0

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

        $w = array();
        for ($i = 0, $z = 5, $m = 43; $i <= $m; $i++) {
            $z = ($i < $m) ? ($z - 1) == 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));
        $v = ($s == 0 || $s == 1) ? 0 : (11 - $s);

        return $v == $aK{ 43 };
    }
}