Classes List

Swift_Encoder_Base64Encoder

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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 Base 64 Encoding in Swift Mailer. * * @author Chris Corbyn */
class Swift_Encoder_Base64Encoder implements Swift_Encoder
{
    /** * Takes an unencoded string and produces a Base64 encoded string from it. * * Base64 encoded strings have a maximum line length of 76 characters. * If the first line needs to be shorter, indicate the difference with * $firstLineOffset. * * @param string $string to encode * @param int $firstLineOffset * @param int $maxLineLength optional, 0 indicates the default of 76 bytes * * @return string */
    public function encodeString($string$firstLineOffset = 0$maxLineLength = 0)
    {
        if (0 >= $maxLineLength || 76 < $maxLineLength) {
            $maxLineLength = 76;
        }

        $encodedString = base64_encode($string);
        $firstLine = '';

        if (0 != $firstLineOffset) {
            $firstLine = substr(
                $encodedString0$maxLineLength - $firstLineOffset
                )."\r\n";
            $encodedString = substr(
                $encodedString$maxLineLength - $firstLineOffset
                );
        }

        return $firstLine.trim(chunk_split($encodedString$maxLineLength"\r\n"));
    }

    /** * Does nothing. */
    public function charsetChanged($charset)
    {
    }
}