43 lines
1.3 KiB
PHP
43 lines
1.3 KiB
PHP
<?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\Mime\Encoder;
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/**
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* @author Chris Corbyn
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*/
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final class Base64MimeHeaderEncoder extends Base64Encoder implements MimeHeaderEncoderInterface
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{
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public function getName(): string
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{
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return 'B';
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}
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/**
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* Takes an unencoded string and produces a Base64 encoded string from it.
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*
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* If the charset is iso-2022-jp, it uses mb_encode_mimeheader instead of
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* default encodeString, otherwise pass to the parent method.
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*/
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public function encodeString(string $string, ?string $charset = 'utf-8', int $firstLineOffset = 0, int $maxLineLength = 0): string
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{
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if ('iso-2022-jp' === strtolower($charset)) {
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$old = mb_internal_encoding();
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mb_internal_encoding('utf-8');
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$newstring = mb_encode_mimeheader($string, 'iso-2022-jp', $this->getName(), "\r\n");
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mb_internal_encoding($old);
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return $newstring;
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}
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return parent::encodeString($string, $charset, $firstLineOffset, $maxLineLength);
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}
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}
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