$str .= "\t<product title=\"{$shopProduct->getTitle()}\">\n";
$str .= "\t\t<summary>\n";
$str .= "\t\t{$shopProduct->getSummaryLine()}\n";
$str .= "\t\t</summary>\n";
$str .= "\t</product>\n";
}
$str .= "</products>\n";
print $str;
}
}
class TextProductWriter extends ShopProductWriter
{
public function write()
{
$str = "PRODUCTS:\n";
foreach ($this->products as $shopProduct) {
$str .= $shopProduct->getSummaryLine() . "\n";
}
print $str;
}
}
$product1 = new BookProduct("My Antonia", "Willa", "Cather", 5.99, 300);
$product2 = new CdProduct("Exile on Coldharbour Lane", "The", "Alabama 3", 10.99, 60.33);
$textwriter = new TextProductWriter();
$textwriter->addProduct($product1);
$textwriter->addProduct($product2);
$textwriter->write();
$xmlwriter = new XmlProductWriter();
$xmlwriter->addProduct($product1);
$xmlwriter->addProduct($product2);
$xmlwriter->write();
// summary
$writer->endElement();
// product
}
$writer->endElement();
// products
$writer->endDocument();
print $writer->flush();
}
}
class TextProductWriter extends ShopProductWriter
{
public function write()
{
$str = "PRODUCTS:\n";
foreach ($this->products as $shopProduct) {
$str .= $shopProduct->getSummaryLine() . "\n";
}
print $str;
}
}
$music = new XmlProductWriter();
$eminem = new ShopProduct('Marshal Matters', 'Slim', 'Shady', 300);
$pod = new ShopProduct('youth of a nation', 'POD', '-', 250);
$music->addProduct($eminem);
$music->addProduct($pod);
$music->write();
?>
</body>
</html>