Question

How can i get the user details from the iframe application ?

the problem is when i try to authenticate the user it authenticating and redirecting to the SITE not to facebook .

actually i am using signed_request to check user liked or not ,if liked i need to get the user details using the graph api [any other ways /javascript ?] so that i can save that on to database.

This is my current code

if (isset($_REQUEST['signed_request']))
        {
            $encoded_sig = null;
            $payload = null;
            list($encoded_sig, $payload) = explode('.', $_REQUEST['signed_request'], 2);
            $sig = base64_decode(strtr($encoded_sig, '-_', '+/'));
            $data = json_decode(base64_decode(strtr($payload, '-_', '+/'), true));
            if($data->page->liked)
            {
                //liked


                $questions = $this->functions->get_questions();

                if($questions["status"] ==TRUE)
                {
                    $questions["data"] = $questions["data"]->result_array();
                    $this->load->view("public/contest",$questions);


                }
                else
                {
                    echo "FALSE";
                }



            }
            else {

                //not liked

                $this->load->view("public/continue");



            }
        }

Thank you.

Answer 1

I would suggest using Facebook SDK. It allows you to get user id, and then query Graph API for some basic information. You can get more information about SDK and how to work with it here