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Antonio Lopes dos Santos afec302c3e
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2026-08-04 16:52:02 -03:00

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PHP

<?php
namespace App\Rules;
use Illuminate\Contracts\Validation\Rule;
class Cnpj implements Rule
{
private $options;
public function __construct(array $options = [])
{
$this->options = $options;
}
/**
* Determine if the validation rule passes.
*
* @param string $attribute
* @param mixed $value
* @return bool
*/
public function passes($attribute, $value)
{
return self::isValid($value);
}
public static function isValid($cnpj)
{
$cnpj = preg_replace('/[^0-9]/', '', (string) $cnpj);
// Valida tamanho
if (strlen($cnpj) != 14)
return false;
// Verifica se todos os digitos são iguais
if (preg_match('/(\d)\1{13}/', $cnpj))
return false;
// Valida primeiro dígito verificador
for ($i = 0, $j = 5, $soma = 0; $i < 12; $i++)
{
$soma += $cnpj[$i] * $j;
$j = ($j == 2) ? 9 : $j - 1;
}
$resto = $soma % 11;
if ($cnpj[12] != ($resto < 2 ? 0 : 11 - $resto))
return false;
// Valida segundo dígito verificador
for ($i = 0, $j = 6, $soma = 0; $i < 13; $i++)
{
$soma += $cnpj[$i] * $j;
$j = ($j == 2) ? 9 : $j - 1;
}
$resto = $soma % 11;
return $cnpj[13] == ($resto < 2 ? 0 : 11 - $resto);
}
/**
* Get the validation error message.
*
* @return string
*/
public function message()
{
if (array_key_exists('message', $this->options)) {
return $this->options['message'];
}
$attribute = array_key_exists('attribute', $this->options)
? $this->options['attribute'] : ':attribute';
return "O campo {$attribute} informado é um CNPJ inválido.";
}
}