[eluser]Glazz[/eluser]
I believe you have installed the library correctly so you need to load the library, you can do this but manually loading or autoloading it, you choose.
After that, you go to your controller and post something like this:
Code:
$info = $this->whois->check('example_domain.com');
echo '<pre>';
print_r($info);
echo '</pre>';
It will print the contents of the array.
This is just for printing the data to see if it is working, to use the data you do something like:
Code:
echo $info['whois'];
This will echo / print the whois information of a domain that is registered.