{
            return null;
        }
        public function get_categories()
        {
            return null;
        }
    }
    $feed = new DummySingleItemFeed($url);
}
////////////////////////////////////////////
// Create full-text feed
////////////////////////////////////////////
$output = new FeedWriter();
if (_FF_FTR_MODE === 'simple') {
    $output->enableSimpleJson();
}
//$feed_title = $feed->get_title();
//echo $feed_title; exit;
$output->setTitle(strip_tags($feed->get_title()));
$output->setDescription(strip_tags($feed->get_description()));
$output->setXsl('css/feed.xsl');
// Chrome uses this, most browsers ignore it
$ttl = $feed->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'ttl');
if ($ttl !== null) {
    $ttl = (int) $ttl[0]['data'];
    $output->setTtl($ttl);
}
$output->setSelf(get_self_url());
$output->setAlternate($url, 'Source URL');
$output->setRelated('http://www.subtome.com/#/subscribe?feeds=' . urlencode(get_self_url()) . '&back=' . urlencode(get_self_url()), 'Subscribe to feed');