remove index.php from url

As i mentioned above i have tried this already but this is not working for me.


.htaccess file ::

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


config file ::
$config['index_page'] = 'index.php';
$config['uri_protocol'] = 'REQUEST_URI';