Create an Authentication System with PHP and MySQL (Step by Step)

This tutorial walks through building a basic user authentication system with PHP, MySQL, HTML, and CSS.

It covers setting up the database in phpMyAdmin, creating a users table, and wiring up signup and login flows.

The guide uses PDO, password hashing, and sessions to secure authentication and protect the dashboard.

It also includes logout, giving you a complete end-to-end PHP/MySQL login flow for a simple web app.