40 lines
950 B
PHP
40 lines
950 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 Cpf 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/', '', $input);
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if (strlen($c) != 11 || preg_match("/^{$c[0]}{11}$/", $c) || $c === '01234567890') {
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return false;
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}
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for ($s = 10, $n = 0, $i = 0; $s >= 2; $n += $c[$i++] * $s--);
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if ($c[9] != ((($n %= 11) < 2) ? 0 : 11 - $n)) {
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return false;
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}
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for ($s = 11, $n = 0, $i = 0; $s >= 2; $n += $c[$i++] * $s--);
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if ($c[10] != ((($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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