How to build a user registration system using PHP 5. Create user registration and login scripts. Setup an administrative back-end to search for users, update user information and delete user accounts. This is suitable for an advanced beginner to intermediate level PHP programmer familiar with using MySQL. Part 1. Creating a Simple User Registration and Login Application Part 2. Extending the User Login Application Part 3. Building the Member/User Administration Back-end of your Website The second edition contains updated code (procedural and object-oriented) for working with the MySQLi extension.