Codeigniter introduction
Codeigniter is a MVC Framework
What is MVC?
MVC Stands for Model, View, and Controller
MVC Architecture

Model-

• Model work as back-end.
• The model deals with back-end operations.
• Fetch data from the database and send it to the controller

Views-

• View work as front-end.
• View deals with front-end operations.
• Display data and capture user action
• Send user action to the controller

Controllers-
The controller works as an intermediator between model and view.
Advantage of MVC

• Reduce code flexibility
• Code Reusability
• Easy to manage
• Code readability

What is the framework?
The framework is a collection of reusable libraries. which mean how to reuse the code.
why we use CodeIgniter

• Lightweight(consumer low memory)
• Easy to learn
• Good documentation (https://www.codeigniter.com/docs)

How to install CodeIgniter
Download the code from https://www.codeigniter.com/
Extract the zip file and paste it the root directory
Rename the directory(if you want)
run the CodeIgniter (https://localhost/directory_name)