// use an instance of MailMimeParser as a class dependency
$mailParser = new \ZBateson\MailMimeParser\MailMimeParser();

$handle = fopen('file.mime', 'r');
// parse() accepts a string, resource or Psr7 StreamInterface
$message = $mailParser->parse($handle);         // returns a \ZBateson\MailMimeParser\Message
fclose($handle);

// OR: use this procedurally (Message::from also accepts a string,
// resource or Psr7 StreamInterface
$message = \ZBateson\MailMimeParser\Message::from($string);

echo $message->getHeaderValue('from');          // [email protected]
echo $message
    ->getHeader('from')
    ->getPersonName();                          // Person Name
echo $message->getHeaderValue('subject');       // The email's subject

echo $message->getTextContent();                // or getHtmlContent()

$att = $message->getAttachmentPart(0);          // first attachment
echo $att->getHeaderValue('Content-Type');      // e.g. "text/plain"
echo $att->getHeaderParameter(                  // value of "charset" part
    'content-type',
    'charset'
);
echo $att->getContent();                        // get the attached file's contents
$stream = $att->getContentStream();             // the file is decoded automatically
$dest = \GuzzleHttp\Psr7\stream_for(
    fopen('my-file.ext')
);
\GuzzleHttp\Psr7\copy_to_stream(
    $stream, $dest
);