How do I detect what browser is used to access my site?

Question

How do I detect what browser (IE, Firefox, Opera) the user is accessing my site with? Examples in Javascript, PHP, ASP, Python, JSP, and any others you can think of would b

Answer 1

You can do this by:
- looking at the web server log, OR
- looking at the User-Agent field in the HTML request (which is a plain text stream) before processing it.