Absolute "noob" questions

[eluser]Pascal Kriete[/eluser]
Hey callumd,

I'll move from the bottom up. Yes, constructors are automatically called if you don't define your own - it's a personal choice to put the 'emtpy' ones in.

CodeIgniter operates on one 'super-object'. Controllers extend this super object so you don't run into scoping issues.
Since inheritance in PHP 4 is essentially broken, a different base object is used for PHP 5. So if you open up system/codeigniter/base#.php, you will find your elusive CI_Base class.

Of course an application is more than just controllers. Libraries and helpers are used for shared code. CodeIgniter loads libraries as singletons (one instance) and then creates a class variable reference to that object, so you end up with $this->library_name . The loader is referenced with $load, so $this->load->view() calls the view function of the class in system/loader.php .

To get access to the current super-object in a library you can use the get_instance() function.

htaccess is not available on all server configurations, and it can be a pain to make it work if your host has imposed funny restrictions. Search the forums, you will find a lot of threads on this - many with very useful information.

Hope that covers most of it.
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