亚马逊产品广告 API - PHP 致命错误

Question

For a few days I'm trying to connect to Amazon Product Advertising API using PHP. I've tried both SDK and none SDK and nothing helps.

I want to share a none sdk code and maybe get your help on why i'm getting an error.

 <?php /** * Copyright 2019 Amazon.com, Inc. or its affiliates. All Rights Reserved. * * Licensed under the Apache License, Version 2.0 (the "License"). * You may not use this file except in compliance with the License. * A copy of the License is located at * * http://www.apache.org/licenses/LICENSE-2.0 * * or in the "license" file accompanying this file. This file is distributed * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either * express or implied. See the License for the specific language governing * permissions and limitations under the License. */ include ("aws.php"); $searchItemRequest = new SearchItemsRequest (); $searchItemRequest->PartnerType = "Associates"; // Put your Partner tag (Store/Tracking id) in place of Partner tag $searchItemRequest->PartnerTag = "***"; $searchItemRequest->Keywords = "Harry"; $searchItemRequest->SearchIndex = "All"; $searchItemRequest->Resources = ["Images.Primary.Small","ItemInfo.Title","Offers.Listings.Price"]; $host = "webservices.amazon.com"; $path = "/paapi5/searchitems"; $payload = json_encode ($searchItemRequest); //Put your Access Key in place of <ACCESS_KEY> and Secret Key in place of <SECRET_KEY> in double quotes $awsv4 = new AwsV4 ("***", "***"); $awsv4->setRegionName("us-east-1"); $awsv4->setServiceName("ProductAdvertisingAPI"); $awsv4->setPath ($path); $awsv4->setPayload ($payload); $awsv4->setRequestMethod ("POST"); $awsv4->addHeader ('content-encoding', 'amz-1.0'); $awsv4->addHeader ('content-type', 'application/json; charset=utf-8'); $awsv4->addHeader ('host', $host); $awsv4->addHeader ('x-amz-target', 'com.amazon.paapi5.v1.ProductAdvertisingAPIv1.SearchItems'); $headers = $awsv4->getHeaders (); $headerString = ""; foreach ( $headers as $key => $value ) { $headerString .= $key . ': ' . $value . "\\r\\n"; } $params = array ( 'http' => array ( 'header' => $headerString, 'method' => 'POST', 'content' => $payload ) ); $stream = stream_context_create ( $params ); $fp = @fopen ( 'https://'.$host.$path, 'rb', false, $stream ); if (! $fp) { throw new Exception ( "Exception Occured" ); } $response = @stream_get_contents ( $fp ); if ($response === false) { throw new Exception ( "Exception Occured" ); } echo $response; class SearchItemsRequest { public $PartnerType; public $PartnerTag; public $Keywords; public $SearchIndex; public $Resources; } ?>

Error is:

root@difmode:/var/www/html/cms# php index.php PHP Fatal error: Uncaught Exception: Exception Occured in /var/www/html/cms/index.php:56 Stack trace: #0 {main} thrown in /var/www/html/cms/index.php on line 56

Answer 1

If I counted your lines correctly, then the error is thrown by your code:

$fp = @fopen ( 'https://'.$host.$path, 'rb', false, $stream );

if (! $fp) {
    throw new Exception ( "Exception Occured" );
}

Basically your $fp is empty. Why, well remove the mutes ( @ ) from your code and you will see the errors.