Question

我目前正在为我的网页上的facebook连接登录页面工作。

但我一直在接受未定义的方法＆＃39;第24行的错误消息：

$session = $facebook->getSession();

当我删除第24行时，一切似乎都顺利进行。

因为我正在http://www.9lessons.info/2011/01/facebook-graph-api-connect-with-php-and.html和http://net.tutsplus.com/tutorials/php/how-to-authenticate-your-users-with-facebook-connect/上学习教程 - 它让我感到难过！

错误消息是

Fatal error: Call to undefined method Facebook::getSession() in C:\xampp\htdocs\kite\index.php on line 24

请帮忙。提前谢谢了。这是我的代码：

<?php session_start();

    //config
    include "resources/Connections/kite.php";

    //connect to the database so we can check, edit, or insert data to our users table
    $con = mysql_connect($hostname_kite, $username_kite, $password_kite) or die(mysql_error());
    $db = mysql_select_db($database_kite, $con) or die(mysql_error());

    //include out functions file giving us access to the protect() function made earlier
    include "resources/php/functions.php";

    //setup facebook connect
    require 'resources/facebook/src/facebook.php';
    $facebook = new Facebook(array(
      'appId'  => $appid_kite,
      'secret' => $secret_kite,
    ));

    // Get User ID
    $user = $facebook->getUser();

    // Let's see if we have an active session
    $session = $facebook->getSession();

    // We may or may not have this data based on whether the user is logged in.
    //
    // If we have a $user id here, it means we know the user is logged into
    // Facebook, but we don't know if the access token is valid. An access
    // token is invalid if the user logged out of Facebook.

    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);
        $user = null;
      }
    }// Login or logout url will be needed depending on current user state.
    if ($user) {
      $logoutUrl = $facebook->getLogoutUrl();
    } else {
      $loginUrl = $facebook->getLoginUrl();
    }
    ob_start();
    ?>

Answer 1

这是一个老问题，但记录在案：

要获得快速解决方案，请将getSession()的所有引用替换为getUser()

示例：

$session = $facebook->getSession();

它应该说：

$session = $facebook->getUser();

参考：Upgrade to PHP SDK v3.0.0

Answer 2

检查您所包含的库。确保你有最新版本

请在此处查看已接受的答案：Facebook require_login not working

Answer 3

此外，如果您不想编辑代码，您可能希望恢复为2.x sdk。

https://github.com/facebook/php-sdk/zipball/v2.1.2

解决致命错误：在facebook身份验证期间调用未定义的方法Facebook :: getSession（）

3 个答案: