Respect\Validation\Rules\Base64

Complexity

Total Complexity

3

Size/Duplication

Total Lines	13
Duplicated Lines	0 %

Test Coverage

Coverage

100%

Importance

Changes

0

1 Method

Rating	Name	Duplication	Size	Complexity
A	validate()	0	11	3

<?php

/*
 * This file is part of Respect/Validation.
 *
 * (c) Alexandre Gomes Gaigalas <alexandre@gaigalas.net>
 *
 * For the full copyright and license information, please view the "LICENSE.md"
 * file that was distributed with this source code.
 */

declare(strict_types=1);

namespace Respect\Validation\Rules;

class Base64 extends AbstractRule
{
    public function validate($input): bool
    {
        if (!is_string($input)) {
            return false;
        }

        if (!preg_match('#^[A-Za-z0-9+/\n\r]+={0,2}$#', $input)) {
            return false;
        }

        return 0 === mb_strlen($input) % 4;
    }
}