DokuWiki uses the SimplePie library to parse RSS and Atom feeds.

Please refer to the excellent documentation on how to work with SimplePie. To use the library in DokuWiki access it through the FeedParser subclass of SimplePie. It offers the same functionality as the original library but is configured to use DokuWiki's own HTTPClient library.

Here's a simple example to print feed item titles:

require_once(DOKU_INC.'inc/FeedParser.php');
 
$feed = new FeedParser('http://feedproxy.google.com/splitbrain');
echo '<ul>';
foreach ($feed->get_items() as $item){
    echo '<li>'.$item->get_title().'</li>';
}
echo '</ul>';