I recently started wondering about sites like http://thismachine.info/ that get the user’s operating system info. I have not been able to find out how to do that with PHP, and wanted to try to figure it out.
I noticed that they list the
user-agent, which gives lots of info about the browser. Do they get the operating system information from that, or from something else? Is there an API I could use to get the user’s operating system?
I see how they got the Browser and IP, but could not figure out the Operating System part!