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40 lines
931 B
PHP
40 lines
931 B
PHP
<?php
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/*
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* This file is part of Respect/Validation.
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*
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* (c) Alexandre Gomes Gaigalas <alexandre@gaigalas.net>
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*
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* For the full copyright and license information, please view the "LICENSE.md"
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* file that was distributed with this source code.
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*/
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namespace Respect\Validation\Rules;
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class Cnpj extends AbstractRule
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{
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public function validate($input)
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{
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//Code ported from jsfromhell.com
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$c = preg_replace('/\D/', '', $input);
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$b = [6, 5, 4, 3, 2, 9, 8, 7, 6, 5, 4, 3, 2];
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if (strlen($c) != 14) {
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return false;
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}
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for ($i = 0, $n = 0; $i < 12; $n += $c[$i] * $b[++$i]);
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if ($c[12] != ((($n %= 11) < 2) ? 0 : 11 - $n)) {
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return false;
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}
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for ($i = 0, $n = 0; $i <= 12; $n += $c[$i] * $b[$i++]);
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if ($c[13] != ((($n %= 11) < 2) ? 0 : 11 - $n)) {
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return false;
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}
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return true;
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}
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}
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