Tentando conectar no Facebook SDK PHP

index.php

<?php
/**
 * Copyright 2011 Facebook, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may
 * not use this file except in compliance with the License. You may obtain
 * a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */

require 'facebook/facebook.php';

// Create our Application instance (replace this with your appId and secret).
$facebook = new Facebook(array(
  'appId'  => '132820276910194',
  'secret' => '1c1a66c9a520fa0e8abdee80294cdcc3',
  'cookie' => true
));

// Get User ID
$user = $facebook->getUser();
echo '<pre>'; print_r($user); echo '</pre>';exit;


// We may or may not have this data based on whether the user is logged in.
//
// If we have a $user id here, it means we know the user is logged into
// Facebook, but we don't know if the access token is valid. An access
// token is invalid if the user logged out of Facebook.

if ($user) {
  try {
    // Proceed knowing you have a logged in user who's authenticated.
    $user_profile = $facebook->api('/me');
  } catch (FacebookApiException $e) {
    error_log($e);
    $user = null;
  }
}

// Login or logout url will be needed depending on current user state.
if ($user) {
  $logoutUrl = $facebook->getLogoutUrl();
} else {
  $loginUrl = $facebook->getLoginUrl(array('scope' => 'email,publish_stream,manage_pages'));
}

$access_token = $facebook->getAccessToken();

$attachment =  array(
  'access_token' => $access_token,
  'message' => "Test with Facebook SDK for PHP",
  'name' => "Patrick Maciel",
  'description' => "Just a test",
  'link' => "http://www.patrickmaciel.com",
  'picture' => ""
);

try{
  $post_id = $facebook->api("/iniciativa3det/feed","POST",$attachment);
}catch(Exception $e){
  echo '<pre>'; print_r($e->getMessage()); echo '</pre>';
}