My own Facebook Events to Wordpress Plugin

<?php

  $myplugin_app_id = 'YOUR APP ID HERE';
  $myplugin_secret = 'YOUR APP SECRET HERE';
  $myplugin_page_id = 'PUBLIC PAGE ID YOU WANT TO GET EVENTS FROM';

  // Skip these two lines if you're using Composer
  // define('FACEBOOK_SDK_V4_SRC_DIR', '/facebook-php-sdk-v4/src/Facebook/');

  try {
    require __DIR__ . '/facebook-php-sdk-v4/autoload.php';
  } catch (Exception $e) {
    exit('Require failed! Error: '.$e);
  }

  use Facebook\FacebookSession;
  use Facebook\FacebookRequest;
  use Facebook\GraphUser;
  use Facebook\FacebookRequestException;
  use Facebook\GraphObject;

  FacebookSession::setDefaultApplication( $myplugin_app_id, $myplugin_secret);

  // If you're making app-level requests:
  $session = FacebookSession::newAppSession();

  // If you already have a valid access token:
  // $session = new FacebookSession( $pp_app_token );

  // To validate the session:
  try {
    $session->validate();
  } catch (FacebookRequestException $ex) {
    // Session not valid, Graph API returned an exception with the reason.
    echo $ex->getMessage();
  } catch (\Exception $ex) {
    // Graph API returned info, but it may mismatch the current app or have expired.
    echo $ex->getMessage();
  }


  /* PHP SDK v4.0.0 */
  /* make the API call */
  $request = new FacebookRequest(
    $session,
    'GET',        
    // get all events of a Page, ?fields= let you choose which fields you want the Graph to return
    '/' . $myplugin_page_id . '/events?fields=id,name,location,description,start_time' 
  );
  $response = $request->execute();
  $graphObject = $response->getGraphObject()->asArray(); 

  /* handle the result */
  $objectData = $graphObject['data'];  // returns an indexed array without key

?>