How do you make a page show something in the database?

[Conmiro]

Im making a rpg, and im wondering how to make it, at the top of my page, say "username: "$username""
But I dont know how to make the variable pull up the username the person loged in from the database.

 

[Corey]

This isn't a very easy explanation. I think it would be best if you read up on some PHP\MySQL tutorials.

-Corey