zbateson / mail-mime-parser

     * @param string $mimeType

     * @return \ZBateson\MailMimeParser\Message\MimePart or null

     */

    public function getPartByMimeType($mimeType)

    {

        $key = strtolower($mimeType);

        if (isset($this->mimeToPart[$key])) {

            return $this->mimeToPart[$key][0];

        }

        return null;

    }

    /**

     * Returns an array of all parts associated with the passed mime type if any

     * @param string $mimeType

     * @return \ZBateson\MailMimeParser\Message\MimePart[] or null

     */

    public function getAllPartsByMimeType($mimeType)

    {

        $key = strtolower($mimeType);

        if (isset($this->mimeToPart[$key])) {

            return $this->mimeToPart[$key];

        }

        return null;

    }

    /**

     * Returns true if there's a content stream associated with the part.