Setting values in a config file is a great way to store data in one place, that can be accessed by lots of other pages... and a great way to change things quickly when a site goes live.

However, sometimes you want to store several things that are similar, so an array would be a good idea... This is how it's used in CodeIgniter...

The following is in the config/config.php file:

You can remove the index.php from the url when using CodeIgniter quite easily using the .htaccess file and Apache's mod_rewrite.

This means a url like
http://www.test-domain.co.uk/codeigniter/index.php/HomeController
can become
http://www.test-domain.co.uk/codeigniter/HomeController

There are various examples on the net, however the first few I tried threw an error... No input file specified.