Request Data from Amazon.com Using PHP and SOAP

Though the letter S on SOAP stands for 'Simple', SOAP is far from simple. The idea is to place all input and output detail of a web service into Web Services Description Language(WSDL) document, making it easy for programmer to generate programming interface and call a web service just like creating method or function. No more mess around wit cURL, building queries, or any of that stuff, just create your requested object, make an interface with PHP, call the method, and you get an object containing what you need. As easy as that.

PHP5 has a collection of built-in SOAP classes, including SoapClient class that will be used often. But typically, classes aren't built by default, you need to include the --enable-soap parameter whenconfiguring and building PHP5.

Here's an example based on Amazon's web service that offers to help you sell its good from your website. Just apply for an access key ID, and you can access it for free. See below

<?php
 $sClient = new SoapClient('http://webservices.amazon.com/AWSECommerceService/
AWSECommerceService.wsdl');

Now, set up an object for the request you want to send.

 $search->AWSAccessKeyId = "yourKeyId";
 $search->Request->SearchIndex = "Music";
 $search->Request->Keywords = "Van Halen";

To perform search, run itemSearch() method.
$result = $sClient->itemSearch($search);

If everything goes well, the XML results will appear ini $result. Here's how to access this object

foreach ($result->Items->Item as $item) {
    $attributes = $item->ItemAttributes;
    if (is_array($attributes->Artist)) {
        $artist = implode($attributes->Artist, ", ");
    } else {
        $artist = $attributes->Artist;
    }
    echo "artist: $artist; title: $attributes->Title
";
}
?>

Hope it helps.