This tutorial shows how to replace the default hardcoded login in the Yii2 basic template with a database-driven authentication system using MySQL. You will learn how to set up the database in phpMyAdmin, configure Yii2 to connect with it, create and run migrations for the user table, seed an admin user, and test the login form in the browser. By the end, your Yii2 basic app will use real database authentication instead of the default User.php model.