Check if user exists in database

[Erik_Fischer]

I'm making a registration page and need to check if the username entered in the form is a username that already exists in the database. How is this done?

[Lawlssbatmbl]

might want to read this first , also has some demo files you can use .

www.openwall.com/articles/PHP-Users-Passwords

I found it useful setting up my own login pages.