无法从我的代码中解决以下错误。有人可以解释吗？

Question

致命错误：未捕获的 InvalidArgumentException：无效的令牌格式 在 C:\xampp\htdocs\GoogleLogin\GoogleAPI\src\Google\Client.php:449 堆栈跟踪：#0 C:\xampp\htdocs\GoogleLogin\g-callback.php(5)： Google_Client->setAccessToken(Array) #1 {main} 抛出 C:\xampp\htdocs\GoogleLogin\GoogleAPI\src\Google\Client.php 上线 449

这是我的代码 sn-p:

<?php
    require_once "config.php";

    if(isset($_SESSION['access_token']))
        $gClient->setAccessToken($_SESSION['access_token']);
    elseif(isset($_GET['code'])){
        $token = $gClient->fetchAccessTokenWithAuthCode($_GET['code']);
        $_SESSION['access_token'] = $token;
    } else {
        header('Location: login.php');
        exit();
    }


    $oAuth = new Google_Service_Oauth2($gClient);
    $userData = $oAuth->userinfo_v2_me->get();


    $_SESSION['id'] = $userData['id'];
    $_SESSION['email'] = $userData['email'];
    $_SESSION['gender'] = $userData['gender'];
    $_SESSION['picture'] = $userData['picture'];
    $_SESSION['familyName'] = $userData['familyName'];
    $_SESSION['givenName'] = $userData['givenName'];

    header('Location: index.php');
    exit();

?>

Answer 1

检查$_SESSION['access_token'] 是否为空、null 或 false。您正在检查它是否存在，它显然必须存在，但这并不意味着它具有有效值。