/**
* Creates a syndication feed based on the items previously added.
*
* @see FeedCreator::addItem()
* @param string $format format the feed should comply to. Valid values are:
* "PIE0.1", "mbox", "RSS0.91", "RSS1.0", "RSS2.0", "OPML", "ATOM0.3", "HTML", "JS"
* @return string the contents of the feed.
*/
function createFeed($format = "RSS0.91")
{
$this->_setFormat($format);
return $this->_feed->createFeed();
}
