install codeigniter 4 via command line code example
Example 1: codeigniter 4 install composer
composer create-project codeigniter4/appstarter project-root
Example 2: How to Install & Run CodeIgniter Framework
#Some basics steps to install and run codeIgniter are mention in this blogs.
https://techyprogramming.blogspot.com/2020/06/how-to-install-run-codeigniter-framework.html