can't remove index.php from code igniter url code example

Example: how to remove index.php in codeigniter

<?php 
#By default, the index.php file will be included in your URLs:
  
# Create a .htaccess file in your root folder and paste the below code 
RewriteEngine On
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php/$1 [L]
?>