Install xammp and mysql on your computer.
Run the SQL syntax CREATA DATABASE users; in your mysql terminal to create a database.
Also run the above SQL to create a table call logins.
use users;
CREATE TABLE `logins` (
id int(10) NOT NULL,
Username varchar(50) NOT NULL,
`Email` varchar(50) NOT NULL,
`Password` varchar(50) NOT NULL
);
Update the following config/config.php file with your right database information
define("DB_HOST","YOUR DATABASE HOSTNAME HERE");
define("DB_USER","YOUR DATABASE USERNAME HERE");
define("DB_PASS","YOUR DATABASE PASSWORD HERE");
define("DB_NAME","YOUR DATABASE NAME HERE");
//example
define("DB_HOST", "localhost");
define("DB_USER", "root");
define("DB_PASS", "Des@360");
define("DB_NAME", "users");