php – Google AnalyticsAPI：如何提取帐户,获取非对象错误的lis

我正在尝试按照这里提到的教程：
https://developers.google.com/analytics/devguides/reporting/core/v3/quickstart/service-php

我遵循了所有步骤：

>创建了一个项目.
>创建了一个服务帐户.
(当提示输入JSON或P12时,我选择了JSON)
>我在putty中运行了作曲家需要google / apiclient：^ 2.0并更新了我的composer.json文件.
>将我刚刚下载的service-account-credentials.json文件放入文件夹/ p??ublic_html
>创建文件HelloAnalytics.php并将其放入/ public_html文件夹中.

HelloAnalytics.php：

<?php

// Load the Google API PHP Client Library.
require_once '/home/user/vendor/autoload.php';

$analytics = initializeAnalytics();
$profile = getFirstProfileId($analytics);
$results = getResults($analytics,$profile);
printResults($results);

function initializeAnalytics()
{
    // Creates and returns the Analytics Reporting service object.

    // Use the developers console and download your service account
    // credentials in JSON format. Place them in this directory or
    // change the key file location if necessary.
    $KEY_FILE_LOCATION = __DIR__ . '/service-account-credentials.json';

    // Create and configure a new client object.
    $client = new Google_Client();
    $client->setApplicationName("Hello Analytics Reporting");
    $client->setAuthConfig($KEY_FILE_LOCATION);
    $client->setScopes(['https://www.googleapis.com/auth/analytics.readonly']);
    $analytics = new Google_Service_AnalyticsReporting($client);

    return $analytics;
}

function getFirstProfileId($analytics) {
    // Get the user's first view (profile) ID.

    // Get the list of accounts for the authorized user.
    $accounts = $analytics->management_accounts->listManagementAccounts();

    if (count($accounts->getItems()) > 0) {
        $items = $accounts->getItems();
        $firstAccountId = $items[0]->getId();

        // Get the list of properties for the authorized user.
        $properties = $analytics->management_webproperties
            ->listManagementWebproperties($firstAccountId);

        if (count($properties->getItems()) > 0) {
            $items = $properties->getItems();
            $firstPropertyId = $items[0]->getId();

            // Get the list of views (profiles) for the authorized user.
            $profiles = $analytics->management_profiles
                ->listManagementProfiles($firstAccountId,$firstPropertyId);

            if (count($profiles->getItems()) > 0) {
                $items = $profiles->getItems();

                // Return the first view (profile) ID.
                return $items[0]->getId();

            } else {
                throw new Exception('No views (profiles) found for this user.');
            }
        } else {
            throw new Exception('No properties found for this user.');
        }
    } else {
        throw new Exception('No accounts found for this user.');
    }
}

function getResults($analytics,$profileId) {
    // Calls the Core Reporting API and queries for the number of sessions
    // for the last seven days.
    return $analytics->data_ga->get(
        'ga:' . $profileId,'7daysAgo','today','ga:sessions');
}

function printResults($results) {
    // Parses the response from the Core Reporting API and prints
    // the profile name and total sessions.
    if (count($results->getRows()) > 0) {

        // Get the profile name.
        $profileName = $results->getProfileInfo()->getProfileName();

        // Get the entry for the first entry in the first row.
        $rows = $results->getRows();
        $sessions = $rows[0][0];

        // Print the results.
        print "First view (profile) found: $profileNamen";
        print "Total sessions: $sessionsn";
    } else {
        print "No results found.n";
    }
}

遗憾地产生了这个错误：

Fatal error: Call to a member function listManagementAccounts() on a non-object in….

关于如何让它真正起作用的任何建议？