Learning PHP 7 (Video 21)

The video tutorial covers the creation of a registration form with two routes: one for displaying the form and another for handling submissions. It emphasizes the importance of security measures like CSRF tokens and input validation. The tutorial explains how to manage user sessions, handle errors with flash messages, and validate user inputs using existing libraries. It also details the setup of a controller with necessary dependencies and methods for handling GET and POST requests. The video concludes with a focus on private methods for token and input validation.

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