I am working to implement syndication on my site as more efficiently as possible by implementing the RSS 2.0 protocol:
<rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/">
and I was wondering if it is better to stick with .rss or .xml extensions for RSS files or any extension can work just fine? Or, also as I can see here on SitePoint, can I just point the RSS to a PHP script?
In other words, are the following RSS calls all correct and safe for a RSS 2.0 feed?
Thank you for any thoughts in advance!