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<?php
/**
*
* This file is part of Aura for PHP.
* @license http://opensource.org/licenses/bsd-license.php BSD
*/
namespace Aura\Filter\Rule\Sanitize;
* Forces the value to an ISBN.
* @package Aura.Filter
class Isbn
{
* @param object $subject The subject to be filtered.
* @param string $field The subject field name.
* @return bool True if the value was sanitized, false if not.
public function __invoke($subject, $field)
$value = preg_replace('/(?:(?!([0-9|X$])).)*/', '', $subject->$field);
if (preg_match('/^[0-9]{10,13}$|^[0-9]{9}X$/', $value) == 1) {
$subject->$field = $value;
return true;
}
return false;
auraphp /
Aura.Filter
