如何在Code Igniter中实现RSS 2？

How can I implement RSS 2 in Code Igniter?

Try these links:

http://www.derekallard.com/blog/post/building-an-rss-feed-in-code-igniter/

http://codeigniter.com/forums/viewthread/45813/P15/

http://en.wikipedia.org/wiki/RSS

http://validator.w3.org/feed/