php script with latest version fb php sdk

<?php
//error_reporting(E_ALL);
//ini_set('display_errors','On');
//ini_set('display_errors', '1');
require '../../vendor/autoload.php';

use Facebook\FacebookSession;
use Facebook\FacebookRedirectLoginHelper;
use Facebook\FacebookCanvasLoginHelper;
use Facebook\FacebookRequest;
use Facebook\FacebookResponse;
use Facebook\FacebookSDKException;
use Facebook\FacebookRequestException;
use Facebook\FacebookAuthorizationException;
use Facebook\GraphUser;
use Facebook\GraphObject;
use Facebook\Entities\AccessToken;
use Facebook\HttpClients\FacebookCurlHttpClient;
use Facebook\HttpClients\FacebookHttpable;

$fetchUserData = new FetchUserData();

class FetchUserData
{
    //holds the users uid
    public $id;

    public $selectionUID;

    //holds a reference to the db connection
    public $connection;

    //the output object to send back to flash
    public $outputObject;

    //a reference to thd facebook object
    public $facebook;

    public $session;

    public $currentUserObject;

    public function __construct()
    {
        //include the database connection
        include 'database.php';

        //initialize the output object
        $this->outputObject = new stdClass();

        //include the php sdk
        //include the facebook sdk library
//      require_once('facebook.php');
//
//      //instantiate a new Facebook Object, you must replace your APP_ID with your real apps app id. do the same for the secret.
//      $this->facebook = new Facebook(array(
//              'appId' =>  '123',
//              'secret'    =>  '123',
//              'cookie'    =>  true));
        FacebookSession::setDefaultApplication('123', '123');

            $helper = new FacebookCanvasLoginHelper();
        try {
          $this->session = $helper->getSession();
        } catch(FacebookRequestException $ex) {
          // When Facebook returns an error
          $this->outputObject->loggedIn = "facebook error";
        } catch(\Exception $ex) {
          // When validation fails or other local issues
          $this->outputObject->loggedIn = "validation failed";
        }
        if ($this->session) {
            // Logged in
            $this->outputObject->loggedIn = "true";
            /* make the API call */
            $request = new FacebookRequest(
              $this->session,
              'GET',
              '/me/?fields=id,first_name,last_name,picture'
            );
        }
        $response1 = $request->execute();
        //$graphObject = $response->getGraphObject();
        /* handle the result */
        //$this->outputObject->ricky1 = json_encode(var_dump($response));
        //$this->outputObject->ricky2 = json_encode(var_dump($graphObject));
        $this->currentUserObject = json_decode($response1->getRawResponse());

        //$this->outputObject->ricky2 = json_encode($jsonObject);
        //$user_profile = (new FacebookRequest($this->session, 'GET', '/me'))->execute()->getGraphObject(GraphUser::className());

        //$this->outputObject->name = $user_profile->getId();
        $this->id = mysqli_real_escape_string($connection, $this->currentUserObject->id);

        //attempt to get the current user
//      $this->id = mysqli_real_escape_string($connection, $this->facebook->getUser());

        //store a reference to the db connection in this object
        $this->connection = $connection;

        //get the passed in selection UID
        $this->selectionUID = $this->getSelectionUID();

        //only if a selection uid was received continue
        if($this->selectionUID != NULL)
        {
            $this->retrieveUsersDataFromDatabase($this->selectionUID);

            $this->fetchDrawings();
        }
        echo json_encode($this->outputObject);
    }
    public function fetchDrawings()
    {
        //craft up a query
        $query = "SELECT * FROM drawings WHERE victimUID = '" . $this->selectionUID . "'";

        //execute the query
        $result = mysqli_query($this->connection, $query);

        //create an output array
        $outputArray = array();

        while($row = mysqli_fetch_assoc($result))
        {
            array_push($outputArray, $row);
        }

        //loop through the output array to get the first_name, last_name, pictureURL from facebook graph api
        for($i = 0; $i < count($outputArray); $i++)
        {
            $id = mysqli_real_escape_string($this->connection, $outputArray[$i]['artistUID']);

            if($id == $this->id)
            {
                $id = "me";

                $jsonObject = $this->currentUserObject;
            } else
            {
                /* make the API call */
                $request = new FacebookRequest(
                  $this->session,
                  'GET',
                  '/' . $id . '/?fields=id,first_name,last_name,picture'
                );

                $response1 = $request->execute();
                //$graphObject = $response->getGraphObject();
                /* handle the result */
                //$this->outputObject->ricky1 = json_encode(var_dump($response));
                //$this->outputObject->ricky2 = json_encode(var_dump($graphObject));
                $jsonObject = json_decode($response1->getRawResponse());
            }



            //$this->outputObject->ricky2 = json_encode($jsonObject);
            //$user_profile = (new FacebookRequest($this->session, 'GET', '/me'))->execute()->getGraphObject(GraphUser::className());

            //$this->outputObject->name = $user_profile->getId();
            //$this->id = mysqli_real_escape_string($connection, $jsonObject->id);

            //connect to the graph api to fetch the users first_name, last_name, and picture
            //$user = $this->facebook->api($id . "/?fields=id,first_name,last_name,picture,gender,timezone,link");

            $outputArray[$i]['uid'] = $jsonObject->id;
            $outputArray[$i]['first_name'] = $jsonObject->first_name;
            $outputArray[$i]['last_name'] = $jsonObject->last_name;
            $outputArray[$i]['pictureURL'] = $jsonObject->picture->data->url;
            //$outputArray[$i]['gender'] = $jsonObject->gender;
//          $outputArray[$i]['timezone'] = $jsonObject->timezone;
//          $outputArray[$i]['link'] = $jsonObject->link;

            //connect to the database to get the users faveorite colors
            //craft up a query
            $query = "SELECT favColor1,favColor2,motd2 FROM Users WHERE uid='" . $id . "' LIMIT 1";

            //$this->outputObject->query = $query;

            //execute the query
            $result = mysqli_query($this->connection, $query);

            while($row = mysqli_fetch_assoc($result))
            {
                //$this->outputObject->testing = $row['favColor1'] . " " . $row['favColor2'];
                $outputArray[$i]['favColor1'] = $row['favColor1'];
                $outputArray[$i]['favColor2'] = $row['favColor2'];
                $outputArray[$i]['motd2'] = $row['motd2'];
            }
        }

        //store a reference to the array in the output object
        $this->outputObject->drawingsData = $outputArray;
    }
    public function retrieveUsersDataFromDatabase($uid)
    {
        //prepare a query
        $query = "SELECT * FROM Users WHERE uid in (" . $uid . ") LIMIT 1;";

        //execute the query
        $result = mysqli_query($this->connection, $query);

        while($row = mysqli_fetch_assoc($result))
        {
            $this->outputObject->userData = $row;
        }

        if($uid == $this->id)
        {
            $uid = "me";

            $jsonObject = $this->currentUserObject;
        } else
        {
            /* make the API call */
            $request = new FacebookRequest(
              $this->session,
              'GET',
              '/' . $uid . '/?fields=id,first_name,last_name,picture'
            );

            $response1 = $request->execute();
            //$graphObject = $response->getGraphObject();
            /* handle the result */
            //$this->outputObject->ricky1 = json_encode(var_dump($response));
            //$this->outputObject->ricky2 = json_encode(var_dump($graphObject));
            $jsonObject = json_decode($response1->getRawResponse());
        }



        //$this->outputObject->ricky2 = json_encode($jsonObject);
        //$user_profile = (new FacebookRequest($this->session, 'GET', '/me'))->execute()->getGraphObject(GraphUser::className());

        //$this->outputObject->name = $user_profile->getId();
        //$this->id = mysqli_real_escape_string($connection, $jsonObject->id);

        //fetch the users pictureURL from facebook graph api
        //$user = $this->facebook->api("/" . $uid . "?fields=id,first_name,last_name,picture,gender,timezone,link");

        $this->outputObject->userData['uid'] = $jsonObject->id;
        $this->outputObject->userData['first_name'] = $jsonObject->first_name;
        $this->outputObject->userData['last_name'] = $jsonObject->last_name;
        $this->outputObject->userData['pictureURL'] = $jsonObject->picture->data->url;
        //$this->outputObject->userData['gender'] = $jsonObject->gender;
//      $this->outputObject->userData['timezone'] = $jsonObject->timezone;
//      $this->outputObject->userData['link'] = $user['link'];
    }
    public function getSelectionUID()
    {
        if(isset($_POST['selected_uid']))
        {
            return mysqli_real_escape_string($this->connection, $_POST['selected_uid']);
        } else
        {
            return NULL;
        }
    }

}

?>