Triggering event on article creation

/* Make sure it's a new doc */
if ($mode !== modSystemEvent::MODE_NEW) return; 

/* Make sure it's an Article */
if ($resource->get('class_key') !== 'Article') return;

/* your code here */

return '';

<?php
require_once("./facebook-php-sdk/src/facebook.php"); // set the right path
 
$config = array();
$config['appId'] = 'YOUR_APP_ID';
$config['secret'] = 'YOUR_APP_SECRET';
$config['fileUpload'] = false; // optional
$fb = new Facebook($config);
 
$params = array(
  // this is the main access token (facebook profile)
  "access_token" => "YOUR_ACCESS_TOKEN",
  "message" => "MESSAGE",
  "link" => "http://www.something-random.com/",
  "picture" => "http://something-random.com/a.jpg",
  "name" => "TITLE_OF_POST",
  "caption" => "www.something-random.com",
  "description" => "DESCRIPTION"
);
 
try {
  $ret = $fb->api('/me/feed', 'POST', $params);
  echo 'Successfully posted to Facebook Personal Profile';
} catch(Exception $e) {
  echo $e->getMessage();
}
?>