post on facebook via php

<?php
include('src/Facebook/autoload.php');

$fb = new Facebook\Facebook([
  'app_id' => 'app_id',
  'app_secret' => 'app_secret',
  'default_graph_version' => 'v2.8',
  ]);

$accesstoken = "accesstoken";

$linkData = [
  'link' => 'http://www.webbymj.com',
  'message' => 'User provided message',
  ];

try {
  // Returns a `Facebook\FacebookResponse` object
  $response = $fb->post('/me/feed', $linkData, $accesstoken);
} catch(Facebook\Exceptions\FacebookResponseException $e) {
  echo 'Graph returned an error: ' . $e->getMessage();
  exit;
} catch(Facebook\Exceptions\FacebookSDKException $e) {
  echo 'Facebook SDK returned an error: ' . $e->getMessage();
  exit;
}

$graphNode = $response->getGraphNode();

echo 'Posted with id: ' . $graphNode['id'];


?>