/**
  * Make a new entry for holding a version.
  *
  * @param PelTag the tag.  This should be one of {@link
  * PelTag::EXIF_VERSION}, {@link PelTag::FLASH_PIX_VERSION},
  * or {@link PelTag::INTEROPERABILITY_VERSION}.
  *
  * @param float the version.  The size of the entries leave room for
  * exactly four digits: two digits on either side of the decimal
  * point.
  */
 function __construct($tag, $version = 0.0)
 {
     parent::__construct($tag);
     $this->setValue($version);
 }
 /**
  * Make a new entry for holding a user comment.
  *
  * @param
  *            string the new user comment.
  *
  * @param
  *            string the encoding of the comment. This should be either
  *            'ASCII', 'JIS', 'Unicode', or the empty string specifying an
  *            undefined encoding.
  */
 public function __construct($comment = '', $encoding = 'ASCII')
 {
     parent::__construct(PelTag::USER_COMMENT);
     $this->setValue($comment, $encoding);
 }