PHP Sessions Explained | Session in PHP Tutorial for Beginners
In this lecture of Full Stack Web Development NAVTTC (Badge 2) 2026, you will learn about Sessions in PHP, which are used to store user data across multiple pages securely.
Sessions are an important concept in backend development, especially for building login systems, user authentication, and dynamic web applications.
🔹 Topics Covered
✅ What is a Session in PHP
Definition of session
Why sessions are used
Difference between sessions and cookies
✅ Starting a Session
Using session_start()
How sessions work behind the scenes
✅ Storing Data in Session
Using $_SESSION superglobal
Saving user data
Example: storing username or login status
✅ Accessing Session Data
Retrieving stored session values
Using session data across multiple pages
✅ Destroying a Session
session_unset()
session_destroy()
Logout system example
✅ Practical Examples
Simple login session
Passing data between pages
Real-world use cases
🎯 What You Will Learn
By the end of this lecture, you will be able to:
✔ Understand how sessions work in PHP
✔ Store and retrieve user data using sessions
✔ Manage login systems using sessions
✔ Destroy sessions securely (logout)
✔ Build dynamic and user-based web applications
Sessions are essential for advanced topics like authentication systems, dashboards, and Laravel applications.
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