使用脸书登录/谷歌PHP冲突

Question

我试图实现一种方式让用户使用Google和Facebook作为大学作业的一部分登录。我有我的“与Google登录”代码很好地工作。然后我开始尝试实现我的“使用Facebook代码登录”。

<?php 

//required files for Google+ login 
require_once 'google-api-php-client/src/apiClient.php'; 
require_once 'google-api-php-client/src/contrib/apiPlusService.php'; 
//include this file containing specific app details (key, clientID, redirect etc) and get user details (image and name in this case) 
include 'php/googleplus.php'; 
//required for facebook login 
require 'facebook-php-sdk/src/facebook.php'; 

$facebook = new Facebook(array(
    'appId' => 'xxxx', 
    'secret' => 'xxxx', 
)); 

// Get User ID 
$user = $facebook->getUser(); 
if ($user) { 
    try { 
    // Proceed knowing you have a logged in user who's authenticated. 
    $user_profile = $facebook->api('/me'); 
    } catch (FacebookApiException $e) { 
    error_log($e); 
    $user = null; 
    } 
} 

?> 

........ ........

<?php if ($user): 
$fblogoutUrl = $facebook->getLogoutUrl(); 
?> 
<a href="<?php echo $fblogoutUrl; ?>">Logout</a> 
<?php else: 
$fbloginUrl = $facebook->getLoginUrl(); 
?> 
<div> 
Login using OAuth 2.0 handled by the PHP SDK: 
<a href="<?php echo $fbloginUrl; ?>">Login with Facebook</a> 
</div> 
<?php endif ?> 

<div id="login"> 
<!--Load the php code that contains the user login options for google--> 
<?php 
include 'php/userlogin.php'; 
?> 

我没有太多可言据我可以告诉改变的代码 - 只加我自己的应用程序ID，秘密和重定向。当我点击“使用Facebook登录”链接时，我收到以下错误消息：

**Fatal error**: Uncaught exception 'apiAuthException' with message 'Error fetching OAuth2 access token, message: 'invalid_grant'' in /Applications/MAMP/htdocs/www/Shared sites/LOGIN ASSIGNMENT/google-api-php-client/src/auth/apiOAuth2.php:105 Stack trace: #0 /Applications/MAMP/htdocs/www/Shared sites/LOGIN ASSIGNMENT/google-api-php-client/src/apiClient.php(138): apiOAuth2->authenticate(Array) #1 /Applications/MAMP/htdocs/www/Shared sites/LOGIN ASSIGNMENT/php/googleplus.php(19): apiClient->authenticate() #2 /Applications/MAMP/htdocs/www/Shared sites/Login Assignment/index.php(7): include('/Applications/M...') #3 {main} thrown in **/Applications/MAMP/htdocs/www/Shared sites/LOGIN ASSIGNMENT/google-api-php-client/src/auth/apiOAuth2.php** on line **105** 

显然是由于某种原因试图访问Google php文件。我没有足够的经验来诊断问题。我想知道是否有其他人遇到这个错误，我将如何解决这个问题，谢谢。

Answer 1

您可以通过指定外部注销问题来解决此问题。你可以看看here

了解详细信息。这是一个很好的教程来解决这个问题。

希望这有助于

对于谷歌登录，就可以使用LightOpenID.Download从here

include 'openid.php'; 
$openid = new LightOpenID(); 
$openid->identity = 'google.com/accounts/o8/id'; 
$openid->required = array('namePerson/first', 'namePerson/last', 'contact/email'); 
$openid->returnUrl = 'your_return_url'; 
$googleLoginUrl = $openid->authUrl(); 
thats it 
you can check if user logged in or not like 
if ($openid->mode) { //User logged in}