Question

我实施了一个登录按钮，用于检索用户的姓名和电子邮件等数据。似乎正在发生的主要问题是我得到了一个没有找到对象的屏幕，其中包含消息＆＃34;

在此服务器上找不到请求的网址。

引荐页面上的链接似乎是错误的或过时的＃34;在我登录之后。我将我的facebook应用程序中的url设置为localhost / Event.php，但是在这个大的代码放在url之后它不会加载。这只是因为我在本地主机而不是实际服务器上运行它吗？非常感谢任何帮助。

我的代码：

require( __DIR__.'/Facebook/autoload.php' );
$fb = new Facebook\Facebook([
'app_id'                => 'my id',
'app_secret'            => 'my secret',
'default_graph_version' => 'v2.3',
]);

$helper = $fb->getRedirectLoginHelper();

$permissions = ['email']; // optional

try {
if (isset($_SESSION['facebook_access_token'])) {
    $accessToken = $_SESSION['facebook_access_token'];
} else {
    $accessToken = $helper->getAccessToken();
}
} catch(Facebook\Exceptions\FacebookResponseException $e) {
// When Graph returns an error
echo 'Graph returned an error: ' . $e->getMessage();

exit;
} catch(Facebook\Exceptions\FacebookSDKException $e) {
// When validation fails or other local issues
echo 'Facebook SDK returned an error: ' . $e->getMessage();
exit;
}

if (isset($accessToken)) {
if (isset($_SESSION['facebook_access_token'])) {
    $fb->setDefaultAccessToken($_SESSION['facebook_access_token']);
} else {
    // getting short-lived access token
    $_SESSION['facebook_access_token'] = (string) $accessToken;

    // OAuth 2.0 client handler
    $oAuth2Client = $fb->getOAuth2Client();

    // Exchanges a short-lived access token for a long-lived one
    $longLivedAccessToken = $oAuth2Client-
>getLongLivedAccessToken($_SESSION['facebook_access_token']);

    $_SESSION['facebook_access_token'] = (string) $longLivedAccessToken;

    // setting default access token to be used in script
    $fb->setDefaultAccessToken($_SESSION['facebook_access_token']);
}

// redirect the user back to the same page if it has "code" GET variable
if (isset($_GET['code'])) {
    header('Location: ./');
}

// getting basic info about user
try {
    $profile_request = $fb->get('/me?fields=name,first_name,last_name,email');
    $profile = $profile_request->getGraphNode()->asArray();
} catch(Facebook\Exceptions\FacebookResponseException $e) {
    // When Graph returns an error
    echo 'Graph returned an error: ' . $e->getMessage();
    session_destroy();
    // redirecting user back to app login page
    header("Location: ./");
    exit;
} catch(Facebook\Exceptions\FacebookSDKException $e) {
    // When validation fails or other local issues
    echo 'Facebook SDK returned an error: ' . $e->getMessage();
    exit;
}

$name = $profile['first_name'];
$email = $profile['email'];
$eventid = $_GET['id'];
// printing $profile array on the screen which holds the basic info about user
$sql = "INSERT INTO attendees (email, eventid, name) VALUES ('$email', '$eventid', '$name')";

$result = mysqli_query($conn, $sql);

// Now you can redirect to another page and use the access token from $_SESSION['facebook_access_token']
} else {
// replace your website URL same as added in the developers.facebook.com/apps e.g. if you used http instead of https and you used non-www version or www version of your website then you must add the same here
$loginUrl = $helper->getLoginUrl('http://localhost/Events.php', $permissions);

}

PHP facebook sdk - 登录localhost

0 个答案: