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<?php
namespace Brazanation\Documents;
final class Cnpj extends AbstractDocument
{
const LENGTH = 14;
const LABEL = 'CNPJ';
const REGEX = '/^([\d]{2})([\d]{3})([\d]{3})([\d]{4})([\d]{2})$/';
/**
* Cnpj constructor.
*
* @param string $cnpj Only accept numbers
*/
public function __construct($cnpj)
$cnpj = preg_replace('/\D/', '', $cnpj);
parent::__construct($cnpj, self::LENGTH, 2, self::LABEL);
}
* {@inheritdoc}
public function format()
return preg_replace(self::REGEX, '$1.$2.$3/$4-$5', "{$this}");
public function calculateDigit($baseNumber)
$calculator = new DigitCalculator($baseNumber);
$calculator->useComplementaryInsteadOfModule();
$calculator->replaceWhen('0', 10, 11);
$calculator->withModule(DigitCalculator::MODULE_11);
$firstDigit = $calculator->calculate();
$calculator->addDigit($firstDigit);
$secondDigit = $calculator->calculate();
return "{$firstDigit}{$secondDigit}";
brazanation /
php-documents
