I'm wondering how I can store tags in a url without the ? and without keys.
eg. Google Product forums does this: http://productforums.google.com/forum/#!topic/analytics/8qtK861a0iU Each topic wouldn't have it's own directory and so a server side script determines which topic to show visitors.
Does anybody know how it is possible to do this with PHP?
Thanks
Google use a range of software to do this. one of which, can be done using .htaccess used on Apache servers (not IIS)
This is called modrewrite. A URL below can show an example of such tasks:
http://roshanbh.com.np/2008/03/url-rewriting-examples-htaccess.html
Do start learning this, upload a file called .htaccess to your Apache driven webserver.