我一直在使用amazon mws API开发一个项目来查找最低价格的报价，它与ListMatchingProducts和GetMatchingProduct一起工作很好，但是当涉及到GetLowestPricedOffersForASIN时，它显示在XML输出中没有结果
"这个XML文件似乎没有任何与之相关的样式信息。文档树如下所示。"
My PHP File Here:
<?php
$param = array();
$param['AWSAccessKeyId'] = '';
$param['Action'] = 'GetLowestPricedOffersForASIN';
$param['SellerId'] = '';
$param['SignatureMethod'] = 'HmacSHA256';
$param['SignatureVersion'] = '2';
$param['Timestamp'] = gmdate("Y-m-d'TH:i:s.''0''0''0''Z", time());
$param['Version'] = '2011-10-01';
$param['MarketplaceId'] = 'ATVPDKIKX0DER';
$param['ItemCondition'] = 'used';
$param['ASIN'] = '0439139600';
$secret = '';
$url = array();
foreach ($param as $key => $val) {
$key = str_replace("%7E", "~", rawurlencode($key));
$val = str_replace("%7E", "~", rawurlencode($val));
$url[] = "{$key}={$val}";
}
sort($url);
$arr = implode('&', $url);
$sign = 'GET' . "'n";
$sign .= 'mws.amazonservices.com' . "'n";
$sign .= '/Products/2011-10-01' . "'n";
$sign .= $arr;
$signature = hash_hmac("sha256", $sign, $secret, true);
$signature = urlencode(base64_encode($signature));
$link = "https://mws.amazonservices.com/Products/2011-10-01?";
$link .= $arr . "&Signature=" . $signature;
$ch = curl_init($link);
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-type: application/xml'));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
$response = curl_exec($ch);
$info = curl_getinfo($ch);
curl_close($ch);
header('Content-type:text/xml');
echo $response;您的主要问题是，您使用GET而不是POST。这个版本的代码可以工作:
$param = array();
$param['AWSAccessKeyId'] = '';
$param['Action'] = 'GetLowestPricedOffersForASIN';
$param['MarketplaceId'] = 'A1PA6795UKMFR9';
$param['SellerId'] = '';
$param['ASIN'] = 'B002BYQIWM';
$param['ItemCondition'] = 'New';
$param['SignatureMethod'] = 'HmacSHA256';
$param['SignatureVersion'] = '2';
$param['Timestamp'] = gmdate("Y-m-d'TH:i:s.''0''0''0''Z", time());
$param['Version'] = '2011-10-01';
$secret = '';
$url = array();
foreach ($param as $key => $val) {
$key = str_replace("%7E", "~", rawurlencode($key));
$val = str_replace("%7E", "~", rawurlencode($val));
$url[] = "{$key}={$val}";
}
sort($url);
$arr = implode('&', $url);
$sign = 'POST' . "'n";
$sign .= 'mws.amazonservices.de' . "'n";
$sign .= '/Products/2011-10-01' . "'n";
$sign .= $arr;
$signature = hash_hmac("sha256", $sign, $secret, true);
$s64 = base64_encode($signature);
$signature = urlencode($s64);
$link = "https://mws.amazonservices.de/Products/2011-10-01";
$arr .= "&Signature=" . $signature;
$ch = curl_init($link);
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/x-www-form-urlencoded', 'Accept:'));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $arr);
$response = curl_exec($ch);
$info = curl_getinfo($ch);
curl_close($ch);
echo $response;
我使用curl_setopt($ch, CURLOPT_VERBOSE, true);来调试来自服务器的响应。您的代码没有产生任何http正文输出，但这个http头HTTP/1.1 405 Method Not Allowed。改成POST就解决了