02-keywords-search-with-pagination.php

<?php
/**
 * Copyright 2016 David T. Sadler
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License 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 the SDK by using the autoloader from Composer.
 */
require __DIR__.'/../vendor/autoload.php';

/**
 * Include the configuration values.
 *
 * Ensure that you have edited the configuration.php file
 * to include your application keys.
 */
$config = require __DIR__.'/../configuration.php';

/**
 * The namespaces provided by the SDK.
 */
use \DTS\eBaySDK\Constants;
use \DTS\eBaySDK\Finding\Services;
use \DTS\eBaySDK\Finding\Types;
use \DTS\eBaySDK\Finding\Enums;

/**
 * Create the service object.
 */
$service = new Services\FindingService([
    'credentials' => $config['production']['credentials'],
    'globalId'    => Constants\GlobalIds::US
]);

/**
 * Create the request object.
 */
$request = new Types\FindItemsByKeywordsRequest();

/**
 * Assign the keywords.
 */
$request->keywords = 'Harry Potter';

/**
 * Limit the results to 10 items per page.
 */
$request->paginationInput = new Types\PaginationInput();
$request->paginationInput->entriesPerPage = 10;

/**
 * Paginate through 3 pages worth of results. (Does assume there are enough results for 3 pages!)
 */
for ($pageNum = 1; $pageNum <= 3; $pageNum++) {
    $request->paginationInput->pageNumber = $pageNum;

    /**
     * Send the request.
     */
    $response = $service->findItemsByKeywords($request);

    /**
     * Output the result of the search.
     */
    echo "==================\nResults for page $pageNum\n==================\n";

    if (isset($response->errorMessage)) {
        foreach ($response->errorMessage->error as $error) {
            printf(
                "%s: %s\n\n",
                $error->severity=== Enums\ErrorSeverity::C_ERROR ? 'Error' : 'Warning',
                $error->message
            );
        }
    }

    if ($response->ack !== 'Failure') {
        foreach ($response->searchResult->item as $item) {
            printf(
                "(%s) %s: %s %.2f\n",
                $item->itemId,
                $item->title,
                $item->sellingStatus->currentPrice->currencyId,
                $item->sellingStatus->currentPrice->value
            );
        }
    }
}