Method getRef

/**
 * Get reference
 *
 * @param   string  $reference  The key for the reference.
 *
 * @return  mixed  False if not set, reference if it exists
 *
 * @since   1.7.0
 */
public function getRef($reference)
{
    $ref =& self::_getArray();
    if (isset($ref[$reference])) {
        return $ref[$reference];
    } else {
        return false;
    }
}