67 lines
1.6 KiB
PHP
67 lines
1.6 KiB
PHP
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Validator\Constraints;
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use Symfony\Component\Validator\Constraint;
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use Symfony\Component\Validator\ConstraintValidator;
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/**
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* @author Manuel Reinhard <manu@sprain.ch>
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* @author Michael Schummel
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* @link http://www.michael-schummel.de/2007/10/05/iban-prufung-mit-php/
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*
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* @api
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*/
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class IbanValidator extends ConstraintValidator
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{
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/**
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* {@inheritDoc}
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*/
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public function validate($value, Constraint $constraint)
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{
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if (null === $value || '' === $value) {
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return;
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}
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$teststring = preg_replace('/\s+/', '', $value);
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if (strlen($teststring) < 4) {
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$this->context->addViolation($constraint->message, array('{{ value }}' => $value));
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return;
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}
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$teststring = substr($teststring, 4)
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. strval(ord($teststring{0}) - 55)
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. strval(ord($teststring{1}) - 55)
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. substr($teststring, 2, 2);
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$letterToInt = function ($letter) {
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return intval(ord(strtolower($letter[0])) - 87);
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};
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$teststring = preg_replace_callback('/[A-Za-z]/', $letterToInt, $teststring);
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$rest=0;
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$strlen = strlen($teststring);
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for ($pos = 0; $pos < $strlen; $pos += 7) {
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$part = strval($rest) . substr($teststring, $pos, 7);
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$rest = intval($part) % 97;
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}
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if ($rest != 1) {
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$this->context->addViolation($constraint->message, array('{{ value }}' => $value));
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return;
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}
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}
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}
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