This is my demo project.

config.php variables description:

CONFIG VARIABLE NAME	CONFIG VARIABLE DEFAULT VALUE	CONFIG VARIABLE DESCRIPTION
DRIVER	driver	database driver
HOST	host	database host
DATABASE	demo_database	database name
USERNAME	demo_username	database user's username
PASSWORD	demo_password	database user's password
CHARSET	charset	database charset
COLLATION	collation	database collation
PREFIX	prefix	prefix for database table names