codeigniter configure the folder structure

IMHO, doing this on localhost doesn't make a sense for me, BTW:

Instead of moving the index.php file, you could move your application and system folder somewhere outside the htdocs (or public_html on the server) directory and change the paths of those two folder according the directory tree.

There's usually a .htaccess file inside those two folder which prevent direct accessing the PHP files (by Deny from all).

However, Moving those folders outside of the web root, improves the security if the .htaccess stops working for any reason.

For instance, if your index.php file is located at /home/public_html/project/, the application and system folders should be placed at /home/ path:

home  application  system  public_html    project      css      js      .htaccess      index.php

And the paths would be:

$system_path        = '../../system';$application_folder = '../../application';

you can make your css and js like that and define your path in constants.php like that

define('STYLESHEETS_PATH',      'yoururl/css/');define('SCRIPTS_PATH',          'yoururl/js/');

when getting css you just echo $STYLESHEETS_PATH; or for js echo $SCRIPTS_PATH