Viewing file:  Base64HeaderEncoder.php (1.58 KB) -rw-r--r--
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<?php
/*
* This file is part of SwiftMailer.
* (c) 2004-2009 Chris Corbyn
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
/**
* Handles Base64 (B) Header Encoding in Swift Mailer.
*
* @author Chris Corbyn
*/
class Swift_Mime_HeaderEncoder_Base64HeaderEncoder extends Swift_Encoder_Base64Encoder implements Swift_Mime_HeaderEncoder
{
/**
* Get the name of this encoding scheme.
* Returns the string 'B'.
*
* @return string
*/
public function getName()
{
return 'B';
}
/**
* Takes an unencoded string and produces a Base64 encoded string from it.
*
* If the charset is iso-2022-jp, it uses mb_encode_mimeheader instead of
* default encodeString, otherwise pass to the parent method.
*
* @param string $string string to encode
* @param int $firstLineOffset
* @param int $maxLineLength optional, 0 indicates the default of 76 bytes
* @param string $charset
*
* @return string
*/
public function encodeString($string, $firstLineOffset = 0, $maxLineLength = 0, $charset = 'utf-8')
{
if ('iso-2022-jp' === strtolower($charset)) {
$old = mb_internal_encoding();
mb_internal_encoding('utf-8');
$newstring = mb_encode_mimeheader($string, $charset, $this->getName(), "\r\n");
mb_internal_encoding($old);
return $newstring;
}
return parent::encodeString($string, $firstLineOffset, $maxLineLength);
}
}
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