Facebook (public)event crawl

facebookEventCrawl.php

/**
 * Here is short description each property and information
 * - To parse url it use 'Embed\Http' from https://github.com/oscarotero/Embed/ 
 *  
 *  public $targetUrl: You can change to test
 *  private $endPoint: 'https://graph.facebook.com/' => It's shouldn't be changed 
 *  private $facebooKey: XXXXXXXXXX => You must set proper facebookKey 
 *  public $fields: You can change it to choose return data you want
 *   - cover field has image data: cover->source
 *   - Required field should be: name, description, cover
 *
 */
$targetUrl = 'https://www.facebook.com/events/1822069678114212/'; // you can change this url
$endPoint = 'https://graph.facebook.com/';
$facebooKey = 'XXXXXXXXXX';
$fields = 'description,timezone,start_time,end_time,name,owner,privacy,id,cover';

// 1. Extract URL information
$url = Url::create($targetUrl); // Embed\Http

// 2. Check if it's Facebook event
if ($url->getHost() == 'www.facebook.com'
&& $url->getSlicePath(0,1)[0] == 'events'
&& is_numeric($url->getSlicePath(1,1)[0])
) {
    // Get event data
    $facebook_event_id = $url->getSlicePath(1,1)[0]; // set
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $endPoint.$facebook_event_id.'?access_token='.$facebooKey.'&fields='.$fields);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
    $r = curl_exec($ch);
    // return json
    var_dump(json_decode($r));
}