spqr/vendor/workerman/validation/library/Rules/NfeAccessKey.php

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2024-11-05 12:10:06 +08:00
<?php
/*
* Copyright (c) Alexandre Gomes Gaigalas <alganet@gmail.com>
* SPDX-License-Identifier: MIT
*/
declare(strict_types=1);
namespace Respect\Validation\Rules;
use function array_map;
use function floor;
use function mb_strlen;
use function str_split;
/**
* Validates the access key of the Brazilian electronic invoice (NFe).
*
*
* (pt-br) Valida chave de acesso de NFe, mais especificamente, relacionada ao DANFE.
*
* @see (pt-br) Manual de Integração do Contribuinte v4.0.1 em http://www.nfe.fazenda.gov.br
*
* @author Andrey Knupp Vital <andreykvital@gmail.com>
* @author Danilo Correa <danilosilva87@gmail.com>
* @author Henrique Moody <henriquemoody@gmail.com>
*/
final class NfeAccessKey extends AbstractRule
{
/**
* {@inheritDoc}
*/
public function validate($input): bool
{
if (mb_strlen($input) !== 44) {
return false;
}
$digits = array_map('intval', str_split($input));
$w = [];
for ($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 += $digits[$i] * $w[$i];
}
$s -= 11 * floor($s / 11);
$v = $s == 0 || $s == 1 ? 0 : 11 - $s;
return $v == $digits[43];
}
}