Geopositioning in PHP

"Geopositioning In PHP: Finding The Space Behind Cyberspace"
International PHP Magazine, June 2004 (cover story)

In an age where e-mail takes seconds, not weeks, to travel halfway around the globe, it seems physical location matters less and less. But the Internet hasn't eliminated the need to pinpoint geographic location. So what do you do as a Web applications developer when you need to know where your request is coming from? How can you pinpoint the space behind the cyberspace?

§ § §