PHP and MySQL Web Development 4th Ed-tqw-_darksiderg

Solution Overview
839
data, but because you want one set of interface functions to work with data that has
come in via REST or SOAP, you can build your own object-oriented interface to the
same data in instances of the Product class. Note that you cast the attributes from the
XML into PHP variable types in the REST version.You do not use the cast operator
in PHP, but without it here, you would receive object representations of each piece of
data that will not be very useful to you.
The Product class contains mostly accessor functions to access the data stored in its
private members, so printing the entire file here is not worthwhile.The stucture of the
class and constructor is worth visiting, though. Listing 33.11 contains part of the definition
of Product.
Listing 33.11 The Product Class Encapsulates the Information You Have About an
Amazon Product
class Product {
private $ASIN;
private $productName;
private $releaseDate;
private $manufacturer;
private $imageUrlMedium;
private $imageUrlLarge;
private $listPrice;
private $ourPrice;
private $salesRank;
private $availability;
private $avgCustomerRating;
private $authors = array();
private $reviews = array();
private $similarProducts = array();
private $soap; // array returned by SOAP calls
function __construct($xml) {
if(METHOD=='SOAP') {
$this->ASIN = $xml['ASIN'];
$this->productName = $xml['ItemAttributes']['Title'];
if (is_array($xml['ItemAttributes']['Author']) != "") {
foreach($xml['ItemAttributes']['Author'] as $author) {
$this->authors[] = $author;
}
} else {
$this->authors[] = $xml['ItemAttributes']['Author'];
}