I need a script that can check a list of web sites at a specified interval, determine if they have changed since they were last checked, and if they did, create an RSS entry with the website name, the date/time, and a link to the site.
I would prefer the entire script to be in one file for convenience.
For example, just going to the script would output the last 10 RSS entries, like a regular RSS file. Going to the [url removed, login to view] would prompt the script to check its list of sites for any updates. And going to the script [url removed, login to view] would open up the admin panel where you could edit the list of sites to check.