Before diving into the commands, it is helpful to understand why the official CodeIgniter documentation recommends this method:
Before you begin, ensure your development environment meets the following requirements: download codeigniter 4 composer
CodeIgniter 4 (CI4) is a powerful, lightweight PHP framework designed for developers who need a simple and elegant toolkit to create full-featured web applications. While manual installation is possible, the official recommendation is to use , the industry-standard dependency manager for PHP. Before diving into the commands, it is helpful
: The intl , mbstring , and curl extensions must be enabled in your php.ini file. : It aligns your project with modern PHP
: It aligns your project with modern PHP standards (PSR), making it easier to integrate other professional PHP packages. Prerequisites
Using Composer ensures your framework and its dependencies stay up-to-date with minimal effort. This guide provides a step-by-step walkthrough to download and set up CodeIgniter 4 using Composer. Why Use Composer for CodeIgniter 4?