Facebook module for Wordpress

FacebookFeed.php

<?php
use GuzzleHttp\Client;
class FacebookFeed
{
    /**
     * @param int $limit
     * @return array
     */
    public function fetch($limit = 5)
    {
        $client = new Client([
            'base_uri' => 'https://graph.facebook.com/v2.9'
        ]);

        $page_id      = FACEBOOK_PAGE_ID;
        $access_token = FACEBOOK_ACCESS_TOKEN;
        $fields       = 'id,message,link,name,caption,description,created_time,updated_time,picture,object_id,type';
        $response     = $client->request('GET', '/' . $page_id . '/posts/?fields=' . $fields . '&limit=' . $limit . '&access_token=' . $access_token);
        $feed         = json_decode($response->getBody());
        return $feed;
    }
    public function photo($fbpost)
    {
        $client = new Client([
            'base_uri' => 'https://graph.facebook.com/v2.9'
        ]);
        $access_token = FACEBOOK_ACCESS_TOKEN;
        if ($fbpost->type == 'link') {
            $response  = $client->request('GET', '/?id=' . $fbpost->link . '&access_token=' . $access_token);
            $returned  = json_decode($response->getBody());
            if(! isset($returned->og_object->id)){
                $fbpost->type = 'foo'; //no og_object, so change type to skip this conditional
                return $this->photo($fbpost);
            }
            $og_id     = $returned->og_object->id;
            $response  = $client->request('GET', '/' . $og_id . '/?fields=image&access_token=' . $access_token);
            $returned  = json_decode($response->getBody());
            $photo_url = $returned->image[0]->url;
        }
        else {
            $response  = $client->request('GET', '/' . $fbpost->id . '/?fields=object_id&access_token=' . $access_token);
            $returned  = json_decode($response->getBody());
            if ($fbpost->type == 'video') {
                $photo_url = $fbpost->picture;
            }
            else {
                $object_id = $returned->object_id;
                $photo_url = 'https://graph.facebook.com/v2.9/' . $object_id . '/picture?access_token=' . $access_token;
            }
        }
        return $photo_url;
    }
}

sample-page.php

<?php
/**
 * @package GCRP
 */
require('facebook/FacebookFeed.php');
get_header(); ?>
<?php get_template_part('parts/banner'); ?>
    <div id="content" class="section page-content">

    <div id="primary" class="content-area">
        <main id="main" class="site-main" role="main">
            <?php if (have_posts()) :
                if (is_home() && !is_front_page()) : ?>

                <?php endif; ?>

                <div class="blog-container">
                    <div class="container wide">
                        <div class="row">
                            <?php
                            $feed    = new FacebookFeed();
                            $results = $feed->fetch(9);
                            $now     = time();
                            foreach ($results->data as $result) {
                                if (strlen($result->description) > 0)
                                {
                                    $trimmed = wp_trim_words($result->description, $num_words = 26, '...');
                                } else {
                                    $trimmed = 'From the walk...';
                                }

                                $photo_url = $feed->photo($result);
                                ?>

                                <div class="col-sm-6 col-lg-4 text-center">
                                    <div class="blog-article">
                                        <div class="blog-image">
                                            <div class="embed-responsive embed-responsive-16by9">
                                                <?php if($result->type != 'video') { ?>
                                                    <a href="<?php echo $result->link; ?>" target="_blank" ><img
                                                    src="<?php echo $photo_url; ?>"
                                                    alt="<?php echo $result->caption; ?>"
                                                    class="embed-responsive-item img-fluid border-bottom"></a>
                                                <?php } else { ?>
                                                    <a href="<?php echo $result->link; ?>" target="_blank" >
                                                        <iframe
                                                            src="<?php echo 'https://www.facebook.com/plugins/video.php?href='.$result->link ?>"
                                                            style="border:none;overflow:hidden"
                                                            scrolling="no" frameborder="0" allowTransparency="true" allowFullScreen="true" class="embed-responsive-item img-fluid border-bottom">
                                                        </iframe>
                                                    </a>
                                                <?php } ?>
                                            </div>
                                        </div>

                                        <header class="blog-header">
                                            <div class="entry-meta">
                                                <p class="time-posted">
                                                    posted <?php echo human_time_diff($now, strtotime($result->created_time)); ?>
                                                    ago</p>
                                            </div><!-- .entry-meta -->
                                        </header><!-- .entry-header -->
                                        <p class="fbblog-msg" style="margin:0;padding:10px"><?php echo $trimmed; ?></p>

                                    </div>
                                    <div class="blog-link">
                                        <a class="btn btn-primary-custom btn-readmore" href="<?php echo $result->link; ?>" target="_blank" >Read more</a>
                                    </div>
                                </div>
                            <?php } ?>
                        </div>
                    </div>
                </div>

            <?php else :
                get_template_part('template-parts/content', 'none');
            endif; ?>
        </main><!-- #main -->

    </div>

<?php
get_footer();