Step 3 Upload the CodeIgniter folders and files to your server.
Step 4 Open the application/config/config.php file with a text editor and set your base Step. If you intend to use encryption or sessions, set your encryption key Like : “$config[‘encryption_key’] = ‘A41H0LLJG3bc83M0Rl87CfOA3xn3zSKY’”
Step 5 if you want to use the database then open the application/config/database.php file with a text editor and set your database settings.
Step 6 If you want to use libraries then open the application/config/autoload.php file with a text editor and set libraries like :