Swiftmailer embed data image

swiftmailerDatatoImage.php

protected function getImagesFromMsg($msg)
{
    if (!empty($msg))
    {
        preg_match_all('/<img[^>]+>/i', stripcslashes($msg), $imgTags);

        //All img tags
        for ($i=0; $i < count($imgTags[0]); $i++)
        {
            preg_match('/src="([^"]+)/i', $imgTags[0][$i], $withSrc);
            //Remove src
            $withoutSrc = str_ireplace('src="', '', $withSrc[0]);

            //data:image/png;base64,
            if (strpos($withoutSrc, ";base64,"))
            {
                $cid = $this->message->embed(\Swift_Image::fromPath($withoutSrc));
                $msg = str_replace($withoutSrc, $cid, $msg);
            }
        }
    }

    return $msg;
}