CodeIgniter Introduction


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

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


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

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

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

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  1. rupal says

    thanks, Anuj Kumar. very well explain.

  2. Karimulla says

    Explanation is very good.

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