为什么Facebook PHP SDK getUser总是返回0？ Opencart

Question

I am getting 0 as a result while accessing $this->fbconnect->getUser(); in FB login in OpenCart2.1.x .

Below is the code, that i am using:

• In register controller, i am making URL as below:

   if(!$this->customer->isLogged()){ if(!isset($this->fbconnect)){ require_once(DIR_SYSTEM . 'facebook/facebook.php'); $this->fbconnect = new Facebook(array( 'appId' => $this->config->get('facebook_apikey'), 'secret' => $this->config->get('facebook_apisecret'), 'redirect_uri' => $this->url->link('facebook/facebook', '', 'SSL'), 'cookie' => true, 'domain'=>'abc.com' )); } $data['facebook_url'] = $this->fbconnect->getLoginUrl( array( 'scope' => 'public_profile, email', 'redirect_uri' => $this->url->link('facebook/facebook', '', 'SSL') ) ); } 

and in register.tpl the URL is fine and i am being redirected to FB login page for authentication. but after login while returning back to my website, i am getting 0 for getUser() function.

• The Facebook Controller in catalog/controller/facebook/facebook.php the code is like below:

   if(!isset($this->fbconnect)){ require_once(DIR_SYSTEM . 'facebook/facebook.php'); $this->fbconnect = new Facebook(array( 'appId' => $this->config->get('fbconnect_apikey'), 'secret' => $this->config->get('fbconnect_apisecret'), 'redirect_uri' => $this->url->link('facebook/facebook', '', 'SSL'), )); } $_SERVER_CLEANED = $_SERVER; $_SERVER = $this->clean_decode($_SERVER); echo $fbuser = $this->fbconnect->getUser(); **0** 

Full code can be found here:: Click Here

My App Settings are:

Here:: abc.com means that my actual website URL will be replaced here.

Please do not mark this question as DUPLICATE because i have already searched on SO and everywhere and nothing is working here for me. So, please try to give the solution and that is i am posting question after searching for more than 1 day.

Answer 1

Try this ;)

Replace

echo $fbuser = $this->fbconnect->getUser();

with

try {
  // Returns a `Facebook\FacebookResponse` object
  $response = $this->fbconnect->get('/me?fields=id,name', '{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();

echo 'Id: ' . $user['id'];
echo 'Name: ' . $user['name'];