Affiliate system

[eluser]bondjp[/eluser]
I was digging around and found that we can set_cookie.
Wouldn't this be a better solution?

Code:

$affiliate=$this->uri->segment(3);
$cookie = array(
                   'name'   => 'affcode',
                   'value'  => '$affiliate',
                   'expire' => '2592000', // 30 days
                   'domain' => '.mydomain.com',
                   'path'   => '/',
                   'prefix' => 'aff_',
               );


set_cookie($cookie);
// Or
set_cookie('affcode', $affiliate, '2592000'); //is this better?

redirect('home'); // or other page we want the user to end up
// or
$this->load->view('home');

So when the user registers we can check if cookie is set or not like this:

Code:

if (get_cookie('affcode')) {
$affiliate=get_cookie('affcode');

// then save affiliate code into the DB for later use

// and then delete the cookie
delete_cookie('affcode');

}

Is this ok?