CodeIgniter is basically MVC framework in which all controller logic called through index.php file.

It’s look odd in url. To remove index.php, following are simple steps:

1) Create a .htaccess file :

.htaccess file used for server level routing in website.

Example: If you hit sometestexample.com, it will work like following url: sometestexample/index.php

To remove index.php, put the following code in .htaccess file

RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php/$1 [L]

Now you need to change in configuration

$config['index_page'] = "index.php";

to

$config['index_page'] = "";

Now you need to restart the server to reflect new changes. That’s all!