FacebookDebugger.php

<?php
   
namespace backend\components;
    
    
class FacebookDebugger
{
    /*
    * https://developers.facebook.com/docs/opengraph/using-objects
    *
    * Updating Objects
    *
    * When an action is published, or a Like button pointing to the object clicked,
    * Facebook will 'scrape' the HTML page of the object and read the meta tags.
    * The object scrape also occurs when:
    *
    *      - Every 7 days after the first scrape
    *
    *      - The object URL is input in the Object Debugger
    *           http://developers.facebook.com/tools/debug
    *
    *      - When an app triggers a scrape using an API endpoint
    *           This Graph API endpoint is simply a call to:
    *
    *           POST /?id={object-instance-id or object-url}&scrape=true
    */

    /*  USAGES
    *   ======
    *   $fb = new FacebookDebugger();
    *   $fb->reload('http://example.com/');
    *   $fb->reload('http://example.com/foo');
    *   $fb->reload('http://example.com/bar');
    */



    public function reload($url)
    {
        $graph = 'https://graph.facebook.com/';
        $post = 'id='.urlencode($url).'&scrape=true';
        return $this->send_post($graph, $post);
    }

    private function send_post($url, $post)
    {
        $r = curl_init();
        curl_setopt($r, CURLOPT_URL, $url);
        curl_setopt($r, CURLOPT_POST, 1);
        curl_setopt($r, CURLOPT_POSTFIELDS, $post);
        curl_setopt($r, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($r, CURLOPT_CONNECTTIMEOUT, 5);
        $data = curl_exec($r);
        curl_close($r);
        return $data;
    }
}

How do i make use of this, sorry kinda new to this

@BlueprintBQ just create an object of FacebookDebugger and pass your url to reload function. you can also view uses details at here