# phpman > man > MIME::Field::ConTraEnc(3pm)

## NAME
    [MIME::Field::ConTraEnc](https://www.chedong.com/phpMan.php/perldoc/MIME%3A%3AField%3A%3AConTraEnc/markdown) - a "Content-transfer-encoding" field

## DESCRIPTION
    A subclass of [Mail::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AField/markdown).

    *Don't use this class directly... its name may change in the future!* Instead, ask [Mail::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AField/markdown)
    for new instances based on the field name!

## SYNOPSIS
        use [Mail::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AField/markdown);
        use [MIME::Head](https://www.chedong.com/phpMan.php/perldoc/MIME%3A%3AHead/markdown);

        # Create an instance from some text:
        $field = [Mail::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AField/markdown)->new('Content-transfer-encoding', '7bit');

        # Get the encoding.
        #    Possible values: 'binary', '7bit', '8bit', 'quoted-printable',
        #    'base64' and '' (unspecified).  Note that there can't be a
        #    single default for this, since it depends on the content type!
        $encoding = $field->encoding;

## SEE ALSO
    [MIME::Field::ParamVal](https://www.chedong.com/phpMan.php/perldoc/MIME%3A%3AField%3A%3AParamVal/markdown), [Mail::Field](https://www.chedong.com/phpMan.php/perldoc/Mail%3A%3AField/markdown)

## AUTHOR
    Eryq (<eryq@zeegee.com>), ZeeGee Software Inc (<http://www.zeegee.com>). Dianne Skoll
    (<dfs@roaringpenguin.com>) <http://www.roaringpenguin.com>