<h2>Result</h2>
<p>
<?php
try {
$len = strlen($_GET['code']);
if ($len === 8) {
$gtin = new Gtin8($_GET['code']);
} else {
if ($len === 13) {
$gtin = new Gtin13($_GET['code']);
} else {
throw new ArgumentException('GTIN must be 8 or 13 characters');
}
}
if (!$gtin->isValid()) {
throw new ArgumentException('GTIN checksum not valid');
}
$entity = EntityFactory::get('Sweden', $gtin);
if ($entity instanceof WeightProduct) {
echo 'SKU: ' . $entity->getSku() . '<br />';
echo 'Weight: ' . $entity->getWeight() . '<br />';
} else {
if ($entity instanceof PriceProduct) {
echo 'SKU: ' . $entity->getSku() . '<br />';
echo 'Price: ' . $entity->getPrice() . '<br />';
} else {
if ($entity instanceof Coupon) {
echo 'ID (Coupon): ' . $entity->getId() . '<br />';
echo 'Discount: ' . $entity->getValue() . '<br />';
} else {
