I use different software on Platinax, and would really like to aggregate the onsite RSS feeds. I know there are online services that will do this, but I don't want to rely on a third party - I'd simply want to have a PHP script I can upload to my own site to do this automatically. Is there any such script in general release?
If you look at phpClasses.org you'll find a couple of options. I've just used one at my RealState site. Follow the examples and it's really very simple. Don't forget to put the "alternate" tags in the <head> section of the page to ensure that the feed is easy to find. Almost more important than on-page links.