Showing a group

Is there any type of code that I can use to show a certain group. I.e Show a list of Administrators by showing a group so it automatically updates?

I don’t beleive I explained myself well. I am looking for a code which I can use on my site to call a list which contains members of a certain group. i.e. Administrators.

I don’t have a function which will do that, but will go in reverse?

phpvms.net/docs/api

There’s a video tutorial on how to use the API