index.php

<?php 

error_reporting(E_ALL);
ini_set('display_errors', 1);
mb_internal_encoding("UTF-8");

session_start();

// Skip these two lines if you're using Composer
define('FACEBOOK_SDK_V4_SRC_DIR', 'facebook-php-sdk-v4-4.0/src/Facebook/');
require __DIR__ . '/facebook-php-sdk-v4-4.0/autoload.php';

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

$app_id = '517456311725790';
$app_secret = '24383dee2940cf79497f2ebaaee0cce1';
$redirect_url = 'http://localhost/fb-php/index.php';
$permissions = 'manage_pages, publish_actions, read_stream';

FacebookSession::setDefaultApplication($app_id, $app_secret);
$helper = new FacebookRedirectLoginHelper($redirect_url);

try {
  $session = $helper->getSessionFromRedirect();
} catch( FacebookRequestException $ex ) {
  // When Facebook returns an error
} catch( Exception $ex ) {
  // When validation fails or other local issues
}

// see if we have a session
if (isset($session)) {

  $request = new FacebookRequest(
    $session,
      'GET',
      '/me/home'
  );
  $response = $request->execute();
  $graph_object = $response->getGraphObject();
  
  $post_arr = $graph_object->asArray();
  
  $ii = 0;
  foreach ($post_arr['data'] as $post) {
    if (isset($post->message)) {
      echo $ii . ' ' . $post->message . '<br>';
      $ii ++;
    }
  }

} else {
  // show login url
  echo '<a href="' . $helper->getLoginUrl(array('scope'=>$permissions)) . '">Login</a>';
}

?>