Need help for saving a variable result to db

[emucu]

Hello,

I want to save specific information of visitor , for example browser info, while user is registered. So instead of asking to user i can get user's browser info with a variable like $browserinfo, by another method.

So here is the main question, how can i store result of $browserinfo to database?

So its basicly like a profilefield, user choose an option or write and its stored at user table. You can print it using $post[fieldx] code.

I was planning to do it using profilefield but couldnt manage to do it.

So finally, when you register (when registration form loads) using that code it will determine your browser name, and it will save browser name to database