Jetpack_RelatedPosts::_generate_related_post_image_params PHP Method

    protected function _generate_related_post_image_params($post_id)
    {
        $options = $this->get_options();
        $image_params = array('src' => '', 'width' => 0, 'height' => 0);
        if (!$options['show_thumbnails']) {
            return $image_params;
        }
        /**
         * Filter the size of the Related Posts images.
         *
         * @module related-posts
         *
         * @since 2.8.0
         *
         * @param array array( 'width' => 350, 'height' => 200 ) Size of the images displayed below each Related Post.
         */
        $thumbnail_size = apply_filters('jetpack_relatedposts_filter_thumbnail_size', array('width' => 350, 'height' => 200));
        if (!is_array($thumbnail_size)) {
            $thumbnail_size = array('width' => (int) $thumbnail_size, 'height' => (int) $thumbnail_size);
        }
        // Try to get post image
        if (class_exists('Jetpack_PostImages')) {
            $img_url = '';
            $post_image = Jetpack_PostImages::get_image($post_id, $thumbnail_size);
            if (is_array($post_image)) {
                $img_url = $post_image['src'];
            } elseif (class_exists('Jetpack_Media_Summary')) {
                $media = Jetpack_Media_Summary::get($post_id);
                if (is_array($media) && !empty($media['image'])) {
                    $img_url = $media['image'];
                }
            }
            if (!empty($img_url)) {
                $image_params['width'] = $thumbnail_size['width'];
                $image_params['height'] = $thumbnail_size['height'];
                $image_params['src'] = Jetpack_PostImages::fit_image_url($img_url, $thumbnail_size['width'], $thumbnail_size['height']);
            }
        }
        return $image_params;
    }