Google Calendar API，Google_Service类

我希望你能帮助我 .

我正在尝试使用 Oauth2 身份验证连接到Google（日历）API .

为此我遵循了以下步骤：

• 通过Google Developers控制台注册应用

• 使用composer安装客户端库（google-api-php-client）

• 在供应商文件夹中放置以下脚本：

require_once 'autoload.php';
    require('google/apiclient-services/src/Google/Service/Oauth2.php');
    session_start(); 

    // ********************************************************  //
    // Get these values from https://console.developers.google.com
    // Be sure to enable the Analytics API
    // ********************************************************    //
    $client_id = 'myclientid';
    $client_secret = 'myclientsecret';
    $redirect_uri = 'https://domain.nl/dev/vendor/google/apiclient-services/src/Google/Service/Oauth2.php'; //identical as in Google console

    $client = new Google_Client();
    $client->setApplicationName("Client_Library_Examples");
    $client->setClientId($client_id);
    $client->setClientSecret($client_secret);
    $client->setRedirectUri($redirect_uri);
    $client->setAccessType('offline');   // Gets us our refreshtoken

    $client->setScopes(array('https://www.googleapis.com/auth/calendar.readonly'));


    //For loging out.
    if (isset($_GET['logout'])) {
         unset($_SESSION['token']);
    }


    // Step 2: The user accepted your access now you need to exchange it.
    if (isset($_GET['code'])) {

    $client->authenticate($_GET['code']);  
    $_SESSION['token'] = $client->getAccessToken();
    $redirect = 'https://' . $_SERVER['HTTP_HOST'] . $_SERVER['PHP_SELF'];
    header('Location: ' . filter_var($redirect, FILTER_SANITIZE_URL));
    }

    // Step 1:  The user has not authenticated we give them a link to login    
    if (!isset($_SESSION['token'])) {

    $authUrl = $client->createAuthUrl();

    print "Connect Me!";
    }    


    // Step 3: We have access we can now create our service
    if (isset($_SESSION['token'])) {
    $client->setAccessToken($_SESSION['token']);
    print "LogOut ";    

    $service = new Google_Service_Calendar($client);    

    $calendarList  = $service->calendarList->listCalendarList();;

    while(true) {
        foreach ($calendarList->getItems() as $calendarListEntry) {

            echo $calendarListEntry->getSummary()." \n";


            // get events 
            $events = $service->events->listEvents($calendarListEntry->id);


            foreach ($events->getItems() as $event) {
                echo "-----".$event->getSummary()." ";
            }
        }
        $pageToken = $calendarList->getNextPageToken();
        if ($pageToken) {
            $optParams = array('pageToken' => $pageToken);
            $calendarList = $service->calendarList->listCalendarList($optParams);
        } else {
            break;
        }
    }
    }

不幸的是，我在点击Authentication的"accept"按钮后立即收到错误：

Fatal error: Class 'Google_Service' not found in /home/user/domains/domain.nl/private_html/dev/vendor/google/apiclient-services/src/Google/Service/Oauth2.php on line 32

Google research到目前为止没有帮助 .

可能的解决方案：

• 正确设置自动加载路径 . 校验 .

require_once 'autoload.php';

• 运行支持的PHP版本 . 检查（尝试5.6 7.1） .

• 检查composer.json中的库与实际自动加载的库之间是否存在不同之处 . 校验 .

感谢您的帮助！