Horde_Imap_Client_Data_Fetch::getHeaderText PHP Method

    public function getHeaderText($id = 0, $format = 0)
    {
        return $this->_getHeaders($id, $format, Horde_Imap_Client::FETCH_HEADERTEXT);
    }

 /**
  * Return this message's base part headers.
  *
  * @return Horde_Mime_Headers  The message headers.
  */
 public function getHeaders()
 {
     return $this->_data->getHeaderText(0, Horde_Imap_Client_Data_Fetch::HEADER_PARSE);
 }