Day 9: Sessions.

Welcome to the last day of your PHP learning journey!

In this final chapter we will look at PHP Sessions.

Put simply, Sessions let your PHP scripts "remember" returning users. For instance, Sessions is how you can keep your users logged in, without having to ask for username and password at every access.

So, let's see how Sessions work and how to use them.

What you will learn today.

• What are Sessions and why you need them.
• How to use Sessions in practice.
• Some important security considerations.