How to generate domainless links or cache files

[eluser]Jamie Rumbelow[/eluser]
As far as dynamic URLs go, I use a little bit of code that works on all platforms and allows me to have the full domain/hostname in my base URL. It looks something like this:

Code:

$url = ((isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] == "on") ? "https" : "http");
$url .= "://".$_SERVER['HTTP_HOST'];
$url .= str_replace(basename($_SERVER['SCRIPT_NAME']),"",$_SERVER['SCRIPT_NAME']);

$config['base_url']    = $url;