【发布时间】：2017-08-04 21:58:40
【问题描述】：
我使用以下代码获取亚马逊产品数据，并且所有产品都在 xml 中，但 产品库存 在 xml 内容中不存在。
谁能指导我如何获取产品库存信息。
<?php
define('AWS_ACCESS_KEY_ID', 'my-access-key');
define('AWS_SECRET_ACCESS_KEY', 'my-secret-key');
define('AMAZON_ASSOC_TAG', 'my-associate-tag');
function amazon_get_signed_url($searchTerm)
{
$base_url = "http://ecs.amazonaws.com/onca/xml";
$params = array( 'AWSAccessKeyId' => AWS_ACCESS_KEY_ID, 'AssociateTag' => AMAZON_ASSOC_TAG, 'Version' => "2010-11-01", 'Operation' => "ItemLookup", 'Service' => "AWSECommerceService", 'ResponseGroup' => "ItemAttributes", 'ItemId'=> $searchTerm);
if(empty($params['AssociateTag']))
{
unset($params['AssociateTag']);
}
// Add the Timestamp
$params['Timestamp'] = gmdate("Y-m-d\TH:i:s.\\0\\0\\0\\Z", time());
// Sort the URL parameters
$url_parts = array();
foreach(array_keys($params) as $key)
$url_parts[] = $key . "=" . str_replace('%7E', '~', rawurlencode($params[$key]));
sort($url_parts);
// Construct the string to sign
$url_string = implode("&", $url_parts);
$string_to_sign = "GET\necs.amazonaws.com\n/onca/xml\n" . $url_string;
// Sign the request
$signature = hash_hmac("sha256", $string_to_sign, AWS_SECRET_ACCESS_KEY, TRUE);
// Base64 encode the signature and make it URL safe
$signature = urlencode(base64_encode($signature));
$url = $base_url . '?' . $url_string . "&Signature=" . $signature;
return ($url);
}
$getthis = 'B004XIE6WI'; /*---- Product ASIN-----*/
$show = amazon_get_signed_url($getthis);
$ch = curl_init($show);
curl_setopt($ch, CURLOPT_HEADER, false);
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_TIMEOUT, 15);
$c = curl_exec($ch);
$xml = simplexml_load_string($c);
$json = json_encode($xml);
$array = json_decode($json,TRUE);
echo "<pre>";
print_r($array);
echo "</pre>";
?>【问题讨论】：
-
亚马逊不提供实时库存详情。