CodeIgniter 4 Tutorials for Beginners

Junaid S. Shaikh
1 min readAug 8, 2020

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Introduction

CodeIgniter 4 is the upcoming version of CodeIgniter. CodeIgniter is a popular and powerful MVC (Model-View-Controller) framework that is used to develop web applications. It is a free and Open-source PHP framework.

Contents

INTRODUCTION

Introduction

Server Requirement

Installation

Application Structure

What is MVC?

Environment Variables

Controllers

Views

Models

Remove index.php from URL

How to include header & footer

Session

URI Routing

DATABASE

Connect to Database

Insert data into Database

Retrieve data from Database

Update data to Database

Delete data from Database

EXAMPLE

Sign in

PDF Generation

Send Email using PHPMailer

Upload file

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Junaid S. Shaikh

I am a passionate software developer, blogger, writer, and entrepreneur.