imgboard config php

I'm a rookie who's trying to set up his own image board. I did pretty much everything the instructions told me but I'm stumbled against this. I don't know wtf these mean or how to fill them. Copy/Paste from the php file.

define(SQLLOG, 'CHANGEME');        //Table (NOT DATABASE) used by image board
define(SQLUSER, 'CHANGEME');        //MySQL user (must be changed)
define(SQLPASS, 'CHANGEME');        //MySQL user's password (must be changed)
define(SQLDB, 'CHANGEME');        //Database used by image board

what am i supposed to change these with ?

First, SSH to the server install the database. On a debian-based server you'll do something like
sudo apt-get install CHANGEME
sudo /etc/init.d/CHANGEME start

Then, create an user named CHANGEME whose password is CHANGEME. Then, create a table named CHANGEME. Look up the syntax with man CHANGEME.