It is very easy to install CodeIgniter. Just follow  the steps below −

• Step-1 âˆ’ Download the CodeIgniter from the link CodeIgniter (https://codeigniter.com/download)

  • There are two different options legacy and latest. The names itself are self descriptive. legacy has version less than 2.x and latest has 3.0 version.
  • We can also go with GitHub and get all of the latest scripts..

• Step-2 âˆ’ Unzip the folder.

• Step-3 âˆ’ Upload all files and folders to your server.

• Step-4 âˆ’ After uploading all the files to your server, visit the URL of your server, e.g., www.domain-name.com.

On visiting the URL, you will see the following screen −