Facebook LIKE Button Using Facebook Graph API - php

Question

I am working on a website in which there are more than three Facebook Page Like Button. Once user click on the button. First, I need to authenticate the user and then like the respective page. However User authentication is working fine now I need to Like a page. I am following the Facebook Like Documentation. But I am getting confused with {object-id} metioned in the documentation. What is this object-id and How do I get this ?
Like Page Code :
session_start();
require_once 'autoload.php';
use Facebook\FacebookSession;
use Facebook\FacebookRedirectLoginHelper;
use Facebook\FacebookRequest;
use Facebook\FacebookResponse;
use Facebook\FacebookSDKException;
use Facebook\FacebookRequestException;
use Facebook\FacebookAuthorizationException;
use Facebook\GraphObject;
use Facebook\Entities\AccessToken;
use Facebook\HttpClients\FacebookCurlHttpClient;
use Facebook\HttpClients\FacebookHttpable;
FacebookSession::setDefaultApplication( 'App_ID','App_Secret' );
$helper = new FacebookRedirectLoginHelper('http://localhost/fb/like.php' );
try {
$session = $helper->getSessionFromRedirect();
} catch( FacebookRequestException $ex ) {
// Facebook returns an error
} catch( Exception $ex ) {
// validation fails or other local issues
}
if ( isset( $session ) ) {
// Get Basic Userinfo
$getUserInfoObj = new FacebookRequest( $session, 'GET', '/me' );
$getUserInfoProcess = $getUserInfoObj->execute();
$getUserInforesult = $getUserInfoProcess->getGraphObject();
$id = $getUserInforesult->getProperty('id');
// Once Use Logged In Like the respective page
// Like page code
echo '<pre>';print_r($getUserInforesult);exit;
//header("Location: index.php");
} else {
$loginUrl = $helper->getLoginUrl();
header("Location: ".$loginUrl);
}

Answer 1

Object Id is your page, comment, post even photo id that want to make liked.
For example stackoverflow facebook page link is,
https://www.facebook.com/pages/Stack-Overflow/105665906133609?fref=ts
so the object_id is 105665906133609