0 
<?php
error_reporting(E_ALL); 
ini_set("display_errors", 1); 
$AWS_ACCESS_KEY_ID = "KEY";
$AWS_SECRET_ACCESS_KEY = "ACCESS KEY";

$base_url = "http://webservices.amazon.com/onca/xml?";
$url_params = array('Operation'=>"ItemSearch",'Service'=>"AWSECommerceService",
 'AWSAccessKeyId'=>$AWS_ACCESS_KEY_ID,'AssociateTag'=>"associateTag",
 'Version'=>"2011-08-01",'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
$string_to_sign = "GET\webservices.amazon.com\n/onca/xml?\n".implode("&",$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; 
    ?>

这将返回签名错误；为什么？

这是输出，密钥和标签被替换以保护隐私

http://webservices.amazon.com/onca/xml?AWSAccessKeyId=KEY&AssociateTag=ASSIOCATE TAG&Availability=Available&Condition=All&ItemPage=1&Keywords=Amazon&Operation=ItemSearch&ResponseGroup=Images,ItemAttributes,EditorialReview&Service=AWSECommerceService&Timestamp=2012-05-27T09:35:43.000Z&Version= 2011-08-01&签名=KEVlbW6G9ygvHheTf5m0ymguE64LEaYGDtQZQe0bCLQ%3D

4

2 回答 2

1

不确定您是否仍然需要这方面的帮助，但由于没有在您的呼叫中提供有效的关联标签，它很可能会失败。

'AssociateTag'=>"associateTag"

因此，您需要将此值更改为：

'AssociateTag'=>"(my-assigned-associate-tag)"

您必须使用亚马逊提供给您的关联标签。我认为关联标签通常以数字“20”结尾，但我无法验证。如果您不知道您的关联标签，请在此处登录您的关联帐户： 亚马逊关联页面

...它将是页面左上角的“登录为/跟踪 ID ”值。

于 2012-06-18T20:48:44.583 回答
0

签名错误主要是因为access key id和secret key id不匹配

请交叉验证此 ID。

还要检查 associateTag

于 2012-09-12T13:07:15.490 回答