Question

I need to find the rss feed url of a website programmatically.

[Either using php or jquery]

Answer 1

This is something a lot more involved than just pasting some code here. But I can point you in the right direction for what you need to do.

1. First you need to fetch the page
2. Parse the string you get back looking for the RSS Autodiscovery Meta tag. You can either map the whole document out as XML and use DOM traversal, but I would just use a regular expression.
3. Extract the href portion of the tag and you now have the URL to the RSS feed.