This is a simple PHP application with a user registration and login system, running on an Apache web server with a MySQL database. The entire environment is managed using Docker Compose.

DB_HOST: db is the name of the MySQL service in the docker-compose.yml file. it needs to be used as the host in phpmyadmin because phpmyadmin and mysql aren't in the same container ...

Enter WampServer, an open source product that installs a PHP-apps-ready platform consisting of Apache web server, MySQL database, PHP, plus several helpful GUI-based utilities.