Question

我正在尝试获取用户访问令牌我尝试了一百万次，但是没有工作可以任何人请帮助我尝试这样

$fb = new Facebook\Facebook([
    'app_id' => '************************',
    'app_secret' => '********************',
    'default_graph_version' => 'v2.3',
]);

try {
    // Returns a `Facebook\FacebookResponse` object
    $response = $fb->get('/me?fields=id,name', '{ THE ACCESS TOKEN }');
} catch(Facebook\Exceptions\FacebookResponseException $e) {
    echo 'Graph returned an error: ' . $e->getMessage();
    exit;
} catch(Facebook\Exceptions\FacebookSDKException $e) {
    echo 'Facebook SDK returned an error: ' . $e->getMessage();
    exit;
}

$user = $response->getGraphUser();

return $user;

我尝试像这样登录

$helper = $fb->getRedirectLoginHelper();

$permissions = ['public_profile','email']; // Optional permissions
$loginUrl = $helper->getLoginUrl('http://WebSite', $permissions);

echo '<a href="' . $loginUrl . '">Log in with Facebook!</a>';

  try {
        $accessToken = $helper->getAccessToken();
        var_dump($accessToken);
    } 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($accessToken)) {
        if ($helper->getError()) {
            header('HTTP/1.0 401 Unauthorized');
            echo "Error: " . $helper->getError() . "\n";
            echo "Error Code: " . $helper->getErrorCode() . "\n";
            echo "Error Reason: " . $helper->getErrorReason() . "\n";
            echo "Error Description: " . $helper->getErrorDescription() . "\n";
        } else {
            header('HTTP/1.0 400 Bad Request');
            echo 'Bad request';
        }
        exit;
    }

// Logged in
    echo '<h3>Access Token</h3>';
    var_dump($accessToken->getValue());

// The OAuth 2.0 client handler helps us manage access tokens
    $oAuth2Client = $fb->getOAuth2Client();

// Get the access token metadata from /debug_token
    $tokenMetadata = $oAuth2Client->debugToken($accessToken);
    echo '<h3>Metadata</h3>';
    var_dump($tokenMetadata);

// Validation (these will throw FacebookSDKException's when they fail)
    $tokenMetadata->validateAppId($config['1611286245754691']);
// If you know the user ID this access token belongs to, you can validate it here
//$tokenMetadata->validateUserId('123');
    $tokenMetadata->validateExpiration();

    if (!$accessToken->isLongLived()) {
        // Exchanges a short-lived access token for a long-lived one
        try {
            $accessToken = $oAuth2Client->getLongLivedAccessToken($accessToken);
        } catch (Facebook\Exceptions\FacebookSDKException $e) {
            echo "<p>Error getting long-lived access token: " . $helper->getMessage() . "</p>\n\n";
            exit;
        }

        echo '<h3>Long-lived</h3>';
        var_dump($accessToken->getValue());
    }

    $_SESSION['fb_access_token'] = (string)$accessToken;

登录后，返回的url就像这样

http://websitr?code=*******&state=********#_=_

并返回错误

Facebook SDK returned an error: Cross-site request forgery validation failed. The "state" param from the URL and session do not match.

我不知道face book documentation

返回的url我的代码中的代码和状态是什么

请提供任何帮助以获取面子书用户ID和访问令牌，并提前感谢您的帮助。

Answer 1

获得访问令牌后，只需：

    // The OAuth 2.0 client handler helps us manage access tokens
    $oAuth2Client = $fb->getOAuth2Client();

    // Get the access token metadata from /debug_token
    $tokenMetadata = $oAuth2Client->debugToken($accessToken);
    print_r($tokenMetadata->getUserId());

如何让用户访问令牌Facebook获取用户ID

1 个答案: