Replace notecard with text file on web server

I'm looking for an answer to what I am sure is a simple problem and my searches through the forum have not given me an answer that is either useful or that I can understand.

I have a script that gets its information from a notecard but I want it to get the information from a text file on a http server.

currently it uses a simple

string ncName = "notecard_name";

How do I tell it to use a text file on a web server instead?

Is this possible? I guess it is something to do with llHttpRequest but I have had no experience of interaction of this type so it is a completely new area for me.

Thanks in advance for any help you can give.

look up
llHTTPRequest()
and
http_response()

use http request pointing to your url and text file on that server

it will come back as a string in the http_response() event, up to 2kb