HighSpeaker/vendor/workerman/validation/library/Rules/Charset.php
2022-12-24 22:10:40 +08:00

62 lines
1.4 KiB
PHP

<?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 file
* that was distributed with this source code.
*/
declare(strict_types=1);
namespace Respect\Validation\Rules;
use Respect\Validation\Exceptions\ComponentException;
use function array_diff;
use function in_array;
use function mb_detect_encoding;
use function mb_list_encodings;
/**
* Validates if a string is in a specific charset.
*
* @author Alexandre Gomes Gaigalas <alexandre@gaigalas.net>
* @author Henrique Moody <henriquemoody@gmail.com>
* @author William Espindola <oi@williamespindola.com.br>
*/
final class Charset extends AbstractRule
{
/**
* @var string[]
*/
private $charset;
/**
* Initializes the rule.
*
* @throws ComponentException
*/
public function __construct(string ...$charset)
{
$available = mb_list_encodings();
if (!empty(array_diff($charset, $available))) {
throw new ComponentException('Invalid charset');
}
$this->charset = $charset;
}
/**
* {@inheritDoc}
*/
public function validate($input): bool
{
$detectedEncoding = mb_detect_encoding($input, $this->charset, true);
return in_array($detectedEncoding, $this->charset, true);
}
}