43 lines
1.0 KiB
PHP
43 lines
1.0 KiB
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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use Respect\Validation\Exceptions\ComponentException;
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class Charset extends AbstractRule
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{
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public $charset = null;
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public function __construct($charset)
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{
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$available = mb_list_encodings();
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$charset = is_array($charset) ? $charset : [$charset];
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$charset = array_filter($charset, function ($c) use ($available) {
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return in_array($c, $available, true);
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});
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if (!$charset) {
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throw new ComponentException(
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'Invalid charset'
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);
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}
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$this->charset = $charset;
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}
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public function validate($input)
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{
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$detectedEncoding = mb_detect_encoding($input, $this->charset, true);
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return in_array($detectedEncoding, $this->charset, true);
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}
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}
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