我設置了一個應用程序，供用戶在他們的日歷中插入事件。我需要驗證他們是否使用正確的谷歌帳戶登錄。（工作電子郵件）。我已經在網上搜索了幾個小時，但沒有運氣。我嘗試了幾種不同的方法，但都沒有運氣：/我希望有人可以指導我或幫助我讓它發揮作用。謝謝！這是我所擁有的$client = new Google_Client();$client->setApplicationName("Intakes Calendar");$client->setClientId('xxxxxxxx.apps.googleusercontent.com');$client->setClientSecret('xxxxx');$client->setRedirectUri('xxx');$client->setDeveloperKey('xxx');$client->setScopes(array('https://www.googleapis.com/auth/calendar'));$client->addScope('https://www.googleapis.com/auth/userinfo.email');if (isset($_GET['code'])) {    $client->authenticate($_GET['code']);    $_SESSION['token'] = $client->getAccessToken();}if (isset($_SESSION['token'])) {    //echo "<br>Getting access";    $client->setAccessToken($_SESSION['token']);}if ($client->getAccessToken()){    if($client->isAccessTokenExpired()) {        $authUrl = $client->createAuthUrl();        $button =  '<a class="btn btn-success btn-sm" href="'.$authUrl.'">SIGN IN</a>';        $msg = '<DIV class="col-md-6 col-md-offset-3 alert alert-warning">You are not signed in with your work email account for remote sessions.' . $button . '</DIV>';    }else{        //if logged in check for user email         if($_SESSION['USER_EMAIL'] == 'GOOGLE LOGGED IN EMAIL?')            $msg = ' <DIV class="col-md-6 col-md-offset-3 alert alert-warning">You are connected and ready for remote sessions.</DIV>';        else            $msg = ' <DIV class="col-md-6 col-md-offset-3 alert alert-warning">Please log in with your work email.</DIV>';    }}else{    $authUrl = $client->createAuthUrl();    $button =  '<a class="btn btn-success btn-sm" href="'.$authUrl.'">SIGN IN</a>';    $msg = '<DIV class="col-md-6 col-md-offset-3 alert alert-warning">You are not signed in with your work email account for remote sessions.' . $button . '</DIV>';}