I do have Google Analytics on my site (tied to adwords), and have tried many other packages for tracking visitors, but none give me the detail I need. My goal is to keep the exact path visited, per IP.
All those tools work by adding a piece of code to the page, that goes to their server to save the page visit.
It occurred to me that I could save the IP and breadcrumbs in a SESSION array, and scrape the session files directory every few minutes to save the files before they expire.
Later I could decode those and do all kind of of data mining.
This way I don't have to modify the code, don't have to make each page visit go to an external site, and I believe this is less taxing than, let's say... a mysql record write at every page visit.
Would this be a bad idea for any reason I can't imagine yet?
Thanks for any input.