function __construct

[eluser]Iwasignited[/eluser]
Hello,

I have a question about this.
I want to perform some default task in my controller.
I see some guys doing function__construct
but Im a bit confused about
'parent::'

We do

Code:

class Site extends Controller
{
    function __construct()
    {
        parent::__construct();
    }

or

Code:

class Site extends Controller
{
    function __construct()
    {
        parent::Site;
    }

Looking forward to hearing from you soon.
Thanks