Question

define('', 'http://' . Config::get('url.help'));

Where is it pulling url.help from?

Is this a class or a controller?

What is “Config::get”

Answer 1

It is a public static method (get()) on a class (Config) and the :: is called Paamayim Nekudotayim or the Scope Resolution Operator.

url.help will most likely be explode()d on the . dots and used to return a value from an array like the following:

$config['url']['help'];

The values in $config are most likely taken from a plain text configuration file such as XML, YAML or PHP INI style configuration.