Consolidate Amazon Api

[anilm]

Hello. I'm not sure if I'm in the correct forum, but here is the problem.

 

I have registered with Amazon for their API's in all European countries. On my website, I want to consolidate and output the results from these countries when a search has been performed.

 

At the moment I have this, for just 1 country (I've omitted irrelevant stuff), but would there be a php script to help accomplish what I want, and also to print out which amazon website the result came from...i.e. amazon.co.uk, amazon.es, amazon.de....?

 

Thanks

 

<?php

 $amazonAWSAccessKeyId = "aaa";

 $amazonSecretAccessKey = "bbb";

 $amazonAssociateTag = "ccc";

 

 

 function amazonSign($url,$secretAccessKey)

 {

   // 0. Append Timestamp parameter

   $url .= "&Timestamp=".gmdate("Y-m-d\TH:i:s\Z");

 

   // 1a. Sort the UTF-8 query string components by parameter name

   $urlParts = parse_url($url);

   parse_str($urlParts["query"],$queryVars);

   ksort($queryVars);

 

   // 1b. URL encode the parameter name and values

   $encodedVars = array();

   foreach($queryVars as $key => $value)

   {

     $encodedVars[amazonEncode($key)] = amazonEncode($value);

   }

 

   // 1c. 1d. Reconstruct encoded query

   $encodedQueryVars = array();

   foreach($encodedVars as $key => $value)

   {

     $encodedQueryVars[] = $key."=".$value;

   }

   $encodedQuery = implode("&",$encodedQueryVars);

 

   // 2. Create the string to sign

   $stringToSign  = "GET";

   $stringToSign .= "\n".strtolower($urlParts["host"]);

   $stringToSign .= "\n".$urlParts["path"];

   $stringToSign .= "\n".$encodedQuery;

 

   // 3. Calculate an RFC 2104-compliant HMAC with the string you just created,

   //    your Secret Access Key as the key, and SHA256 as the hash algorithm.

   if (function_exists("hash_hmac"))

   {

     $hmac = hash_hmac("sha256",$stringToSign,$secretAccessKey,TRUE);

   }

   elseif(function_exists("mhash"))

   {

     $hmac = mhash(MHASH_SHA256,$stringToSign,$secretAccessKey);

   }

   else

   {

     die("No hash function available!");

   }

 

   // 4. Convert the resulting value to base64

   $hmacBase64 = base64_encode($hmac);

 

   // 5. Use the resulting value as the value of the Signature request parameter

   // (URL encoded as per step 1b)

   $url .= "&Signature=".amazonEncode($hmacBase64);

 

   return $url;

 }

 // $q is set by both search.php and products.php

 if ($q)

 {

   // construct Amazon Web Services REST Query URL

   $url  = "http://webservices.amazon.co.uk/onca/xml?Service=AWSECommerceService";

   $url .= "&Version=2009-03-01";

   $url .= "&Operation=ItemSearch";

   $url .= "&AWSAccessKeyId=".$amazonAWSAccessKeyId;

   $url .= "&AssociateTag=".$amazonAssociateTag;

   $url .= "&ResponseGroup=Medium";

   // sign

   $url = amazonSign($url,$amazonSecretAccessKey);

   $xml = file_get_contents($url);