<?php
// Sample script to validate a repsonse from AWS Associates ECS

// These stay the same for each query
$AmazonAssociateID = "xxx123";
$AWSAccessKey = "your_access_key";
$AWSAPIVersion = "2008-06-28";

// This is the query building part
$Operation = "ItemSearch";
$SearchIndex = "Blended"; // Like searching the WHOLE of amazon.co.uk
$ResponseGroup = "ItemAttributes,Images";
$Keywords = "Harry Potter";

// Glue together the whole URL
$url = "http://ecs.amazonaws.com/onca/xml"
		. "?Service=AWSECommerceService"
		. "&AssociateTag=" . $AmazonAssociateID
		. "&AWSAccessKeyId=" . $AWSAccessKey
		. "&Operation=" . $Operation
		. "&Version=" . $AWSAPIVersion
		. "&ResponseGroup=" . $ResponseGroup
		. "&Keywords=" . $Keywords;

// Retrieve the URL
$response = file_get_contents($url);
// Or use cURL...

// Or if you can't get that to work, here is a dirty wget hack...
#ob_start();
#$ua = "Asgrim's AWS Client v1.0";
#passthru("wget -U '{$ua}' -q -O - '{$url}'");
#$response = ob_get_contents();
#ob_end_clean();

$xdoc = simplexml_load_string($response);

// Validate response
$success = true;
if($xdoc->Items->Request->Errors)
{
	foreach($xdoc->Items->Request->Errors->Error as $error)
	{
		$success = false;
		echo "{$error->Code}: {$error->Message}";
	}
}

?>