ThaiSEOBoard.com

<?php

function awsrequest($region, $params, $public_key, $private_key)
{

    $method = "GET";
    $host = "ecs.amazonaws.".$region;
    $uri = "/onca/xml";

    // additional parameters
    $params["Service"] = "AWSECommerceService";
    $params["AWSAccessKeyId"] = $public_key;
    // GMT timestamp
    $params["Timestamp"] = gmdate("Y-m-d\TH:i:s\Z");
    // API version
    $params["Version"] = "2009-03-31";
    
    // sort the parameters
    ksort($params);
    
    // create the canonicalized query
    $canonicalized_query = array();
    foreach ($params as $param=>$value)
    {
        $param = str_replace("%7E", "~", rawurlencode($param));
        $value = str_replace("%7E", "~", rawurlencode($value));
        $canonicalized_query[] = $param."=".$value;
    }
    $canonicalized_query = implode("&", $canonicalized_query);
    
    // create the string to sign
    $string_to_sign = $method."\n".$host."\n".$uri."\n".$canonicalized_query;
    
    // calculate HMAC with SHA256 and base64-encoding
    $signature = base64_encode(hash_hmac("sha256", $string_to_sign, $private_key, True));
    
    // encode the signature for the request
    $signature = str_replace("%7E", "~", rawurlencode($signature));
    
    // create request
    $request = "http://".$host.$uri."?".$canonicalized_query."&Signature=".$signature;
    
    // do request
    $response = @file_get_contents($request);
    
    if ($response === False)
    {
        return False;
    }
    else
    {
        // parse XML
        $pxml = simplexml_load_string($response);
        if ($pxml === False)
        {
            return False; // no xml
        }
        else
        {
            return $pxml;
        }
    }
}
?>

<?php 
	include("awsrequest.php");
	
	$public_key = "Your Access Key";
	$private_key ="Your Secret Key";
	
	//$country = $_GET['country'];
	//$itempage = $_GET['itempage'];
	//$keywords = trim($_GET['keyword']);
	
	$country = "com";
	$itempage = 1;
	$keywords = "harry potter";

	
	//if (!in_array($country, array('com','co.uk','ca','fr','de','co.jp')))
	//	$country = "com";
		
	$pxml = awsrequest($country, array("ItemPage"=>$itempage,"Keywords"=>$keywords,"Operation"=>"ItemSearch","ResponseGroup"=>"Medium","SearchIndex"=>"Books"), $public_key,$private_key);
	
	header("Content-type: text/xml");
	echo @file_get_contents($pxml);
?>