尝试获取 Google accessToken

看起来，无论我做什么，谷歌都在竭尽全力阻止我完成这个研究项目。我的项目让我使用 Google 电子表格作为数据库，并使用所述电子表格中的数据执行程序化的 Google 图片搜索，并向最终用户显示一些结果。

设置说明

我开始按照此处的说明进行操作：https://github.com/asimlqt/php-google-spreadsheet-client https://github.com/asimlqt/php-google-spreadsheet-client。我下载了Composer https://getcomposer.org/doc/00-intro.md#installation-windows到我的计算机，然后按照说明进行操作here https://github.com/asimlqt/php-google-spreadsheet-client#installation and here https://developers.google.com/api-client-library/php/start/installation让 Composer 将必要的库下载到我的项目中。

编码过程从那里开始，我尝试复制什么this guy https://stackoverflow.com/questions/21470405/google-api-how-to-connect-to-receive-values-from-spreadsheet他的回答中正在做。事实上，这是我的代码：

<?php
    require "vendor/autoload.php";
    //require '/php-google-spreadsheet-client-master\src\Google\Spreadsheet\Autoloader.php';

    use Google\Spreadsheet\DefaultServiceRequest;
    use Google\Spreadsheet\ServiceRequestFactory;

    const GOOGLE_CLIENT_ID = 'someClientID'; // here, I just pulled the default client ID from my Google Developers account
    const GOOGLE_CLIENT_EMAIL = 'someClientEmail'; // I used the default client email here as well, again, straight from Google Developers account
    const GOOGLE_CLIENT_KEY = 'someKey'; // I used the key that I used for the Google Custom Search Engine 
    const GOOGLE_CLIENT_KEY_PATH = 'vendor\google\apiclient\examples\key.p12'; // I did a search on my project folder for the .p12 file that had the key information, and used that path here
    const G_CLIENT_KEY_PW   = 'notasecret'; // the default (I don't know why I need to do this)

    // setup the googleClient
    $googleClient = new Google_Client();
    $googleClient->setApplicationName('future-graph-611');
    $googleClient->setClientId(GOOGLE_CLIENT_ID);
    $googleClient->setAssertionCredentials(new Google_Auth_AssertionCredentials(
        GOOGLE_CLIENT_EMAIL,
        array('https://spreadsheets.google.com/feeds','https://docs.google.com/feeds'), 
        file_get_contents(GOOGLE_CLIENT_KEY_PATH),  // Why can't I use the hard-coded GOOGLE_CLIENT_KEY here?
        G_CLIENT_KEY_PW
    ));
    //$googleClient->setAccessType('offline');
    // get an accessToken
    try
    {
        $googleClient->getAuth()->refreshTokenWithAssertion();  // the problem is here, on this line
    }
    catch (Google_Auth_Exception $exception)
    {
        echo $exception->getMessage();
    }
    $accessToken = json_decode($googleClient->getAccessToken());
    $accessToken = $accessToken->access_token;
?>

由于某种原因，try 块中的语句抛出 Exception: Errorfreshing the OAuth2 token, message: '{ "error" : "invalid_grant" }' 。

我到底做错了什么？我还需要做什么才能使其发挥作用？

我想我在这里找到了问题的答案：https://github.com/asimlqt/php-google-spreadsheet-client/issues/24 https://github.com/asimlqt/php-google-spreadsheet-client/issues/24

/* 由于某种原因，他们在线上遇到了麻烦CURLOPT_SSL_VERIFYPEER => true（并通过将该索引设置为来修复它false) */

Also, echo $SpencerWieczorek->getResponse($this->getQuestion());