Hello, i have a plugin for extra fields in wordpress but I need the registration form to add a promo code depending on where they came from.
For example I have the link set as: have a link "http://getpirelli.com/NEWS/wp-login.php?action=register&pcode=new2010
I would like the registration form to grab "pcode" and put it in the field promo_code within the user database. then I can just change the links per each promo. this way we can track what promo the users signed up for. I know it's doable, but I'm not good enough with PHP.