public $numPages;
function __construct($title, $firstName, $mainName, $price, $numPages)
{
parent::__construct($title, $firstName, $mainName, $price);
$this->numPages = $numPages;
}
function getPrice()
{
return $this->price;
}
function getNumberOfPages()
{
return $this->numPages;
}
function getSummaryLine()
{
$base = parent::getSummaryLine();
$base .= ": page count - {$this->numPages}";
return $base;
}
}
$product1 = new CdProduct("cd1", "bob", "bobbleson", 4, 50);
$product1->setDiscount(3);
print $product1->getSummaryLine();
print "\n";
print "price: {$product1->getPrice()}\n";
$product2 = new BookProduct("book1", "harry", "harrelson", 4, 30);
$product2->setDiscount(3);
print $product2->getSummaryLine();
print "\n";
print "price: {$product2->getPrice()}\n";
