当我点击我的注销网址时,我的facebook php sdk getLogoutUrl无效 . 它带我回到我给定的重定向网址,但它不会破坏我的facebook会话我仍然可以在我的页面上看到我的var_dump($ fb_data)数组并注销网址 .
这是我的代码我使用codeigniter我的lib_login库函数facebook代码
public function facebook()
{
$facebook_default_scope = explode(',', $this->ci->config->item("facebook_default_scope"));
$facebook_app_id = $this->ci->config->item("facebook_app_id");
$facebook_api_secret = $this->ci->config->item("facebook_api_secret");
// init app with app id and secret
FacebookSession::setDefaultApplication($facebook_app_id, $facebook_api_secret);
// login helper with redirect_uri
$helper = new FacebookRedirectLoginHelper(site_url('login/facebook'));
// see if a existing session exists
if (isset($_SESSION) && isset($_SESSION['fb_token'])) {
// create new session from saved access_token
$session = new FacebookSession($_SESSION['fb_token']);
// validate the access_token to make sure it's still valid
try {
if (!$session->validate()) {
$session = null;
}
} catch (Exception $e) {
// catch any exceptions
$session = null;
}
}
if (!isset($session) || $session === null) {
// no session exists
try {
$session = $helper->getSessionFromRedirect();
} catch(FacebookRequestException $ex) {
// When Facebook returns an error
// handle this better in production code
print_r($ex);
} catch(Exception $ex) {
// When validation fails or other local issues
// handle this better in production code
print_r($ex);
}
}
// see if we have a session
if (isset($session)) {
// save the session
$_SESSION['fb_token'] = $session->getToken();
// create a session using saved token or the new one we generated at login
$session = new FacebookSession($session->getToken());
// graph api request for user data
$request = new FacebookRequest($session, 'GET', '/me?fields=id,name,accounts{access_token,category,name,id,perms},permissions');
$response = $request->execute();
// get response
$graphObject = $response->getGraphObject()->asArray();
$logoutUrl = site_url('login');
$fb_data = array(
'me' => $graphObject,
'loginUrl' => $helper->getLoginUrl($facebook_default_scope),
'logoutUrl' => $helper->getLogoutUrl($session,$logoutUrl),
);
$this->ci->session->set_userdata('fb_data', $fb_data);
} else {
$fb_data = array(
'me' => null,
'loginUrl' => $helper->getLoginUrl($facebook_default_scope),
'logoutUrl' => $helper->getLogoutUrl($session,$logoutUrl),
);
$this->ci->session->set_userdata('fb_data', $fb_data);
}
return $fb_data;
}
这是我的控制器的功能
public function facebook()
{
$fb_data = $this->lib_login->facebook();
if (isset($fb_data['me'])) {
echo "<pre>";
var_dump($fb_data);
echo "</pre>";
echo '<a href="' . $fb_data['logoutUrl'] . '">logout</a>';
} else {
echo '<a href="' . $fb_data['loginUrl'] . '">Login</a>';
}
}
当我使用此代码登录我的帐户时,登出URL和$ fb_data数组出现在我的页面上,但是当我注销并刷新我的页面时,它仍然是他们的 . 可以告诉我在这里做错了什么 .
1 回答
尝试这样的事情: