RSS feeds, ATOM and OPML link retrieval with a PHP Class. Full article at: http://imelgrat.me/php/find-atom-opml-rss-feeds/

feed-finder.example.php

  <?php 
    # Add the feed finder class
    require_once('find_feeds.php');
    # Create a new class instance
    $find_links= new Find_RSS_Links('http://www.cleverclogs.org/2006/10/opml_autodiscov.html');
    $links = $find_links->getLinks();

    Display the RSS, ATOM and OPML links found on the page
    print_r ($links);
    ?>