Page Node with Dynaminc Route

Hi all,

I've figured out how to do xen:callbacks on a custom page to call php function, but I was wondering if there was a way to get a variable from the URL and pass that in as a parameter.

Essentially I want{EventID} to load a page with a specific EventID attribute. I have a xen:callback function that gets all the data I need, I just need to figure out how to take a variable from the URL and pass it to the xen:callback function as a variable.

Thanks in Advance,