CodeIgniter is an application development framework, which can be used to develop websites using PHP.
CodeIgniter comes with the outstanding capabilities that enable it to provide an exceptional performance in a very short period of time.
It uses the Model-View-Controller Architectural design pattern and most of PHP developers considered CodeIgniter as one of the best framework solution for small to medium projects.
How to Install Codeigniter
The CodeIgniter installation process is very easy and simple process. First of all, you need to download the CodeIgniter, then upload it to your server’s home directory. You can download it from CodeIgniter official website’s download page https://codeigniter.com/download
Now it’s time for configuration. Open the application/config/config.php file. If you intend to use encryption or sessions, set your encryption key. For the database configuration, open the application/config/database.php file and setup the database host, name, user, password and other values that will help you connect to your database.