Code Igniter :- Step by step tutoral

Step 1. Download Codeigniter. click here or copy and paste the url in browser tab.
            http://codeigniter.com/downloads/
Step 2. extract and rename the folder to the name you want to give. if you want to call / access your application like http://localhost/cms then rename the folder to cms

Step 3. Copy the cms folder to WAMP's www folder
Step 4. Start WAMP and hit url in browser (http://localhost/cms)
Thus we completed the initial steps.