webMaster - managingEditor author or contributor pubDate published (in entry) Atom has no feed-level equivalent lastBuildDate (in channel) updated RSS has no item-level equivalent category category generator generator docs - cloud - ttl - <ttl> is problematic, prefer HTTP 1.1 cache control image logo Atom recommends 2:1 aspect ratio - icon As in favicon.ico rating - textInput - skipHours - skipDays - item entry author author - contributor description summary and/or content depending on whether full content is provided comments - enclosure - rel="enclosure" on <link> in Atom guid id source - rel="via" on <link> in Atom - source Container for feed-level metadata to support aggregation */ // ----------------------------------------------------------------------------- // call the service // ----------------------------------------------------------------------------- $service = new rss(array_merge($_GET, $_POST)); echo $service->json();