Professional PHP5 code for this book

								  require_once('class.Customer.php');								  class SweepstakesCustomer extends Customer {				    public function __construct($customerID) {				        parent::__construct($customerID);				     				        if($this->customerNumber == 1000000) {				          print "Congratulations $this->name!  You're our millionth customer! " .				                "You win a year's supply of frozen fish sticks!  ";				        }				     }				   }								?>