Ben sitenize entegre Amazon Ürün API entegre çalışıyor ve bana URL oluşturmak yardımcı birkaç mesaj geldi ediyorum. Ben şu hatayı alıyorum aşağıdaki ben kodu çalıştırdığınızda tek sorundur. Ben yanlış bir şey yapıyorum?

Internal Server Error The server encountered an internal error or misconfiguration and was unable to complete your request. Please contact the server administrator, awsadmin@amazon.com and inform them of the time the error occurred, and anything you might have done that may have caused the error. More information about this error may be available in the server error log.

$AWS_ACCESS_KEY_ID = "[myaccesskeyhere]";
$AWS_SECRET_ACCESS_KEY = "[mysecretkeyhere]";

$base_url = "http://ecs.amazonaws.com/onca/xml?";
$url_params = array('Operation'=>"ItemSearch",'Service'=>"AWSECommerceService",
 'AWSAccessKeyId'=>$AWS_ACCESS_KEY_ID,'AssociateTag'=>"yourtag-10",
 'Version'=>"2006-09-11",'Availability'=>"Available",'Condition'=>"All",
 'ItemPage'=>"1",'ResponseGroup'=>"Images,ItemAttributes,EditorialReview",
 'Keywords'=>"Amazon");

// Add the Timestamp
$url_params['Timestamp'] = gmdate("Y-m-d\TH:i:s.\\0\\0\\0\\Z", time());

// Sort the URL parameters
$url_parts = array();
foreach(array_keys($url_params) as $key)
    $url_parts[] = $key."=".$url_params[$key];
sort($url_parts);

// Construct the string to sign
$string_to_sign = "GET\necs.amazonaws.com\n/onca/xml\n".implode("&",$url_parts);
$string_to_sign = str_replace('+','%20',$string_to_sign);
$string_to_sign = str_replace(':','%3A',$string_to_sign);
$string_to_sign = str_replace(';',urlencode(';'),$string_to_sign);

// Sign the request
$signature = hash_hmac("sha256",$string_to_sign,$AWS_SECRET_ACCESS_KEY,TRUE);

// Base64 encode the signature and make it URL safe
$signature = base64_encode($signature);
$signature = str_replace('+','%2B',$signature);
$signature = str_replace('=','%3D',$signature);

$url_string = implode("&",$url_parts);
$url = $base_url.$url_string."&Signature=".$signature;
print $url;

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,$url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_TIMEOUT, 15);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);

$xml_response = curl_exec($ch);
echo $xml_response;

EDIT

THE ABOVE CODE NOW WORKS...I WAS MISSING A "?" after the BASE URL