Recent Comments and Recent Posts Combination

<div id="t4b-latest-activities"><?php echo t4b_get_related_author_posts(); ?>
    <div id="t4b-latest-tune">
        <?php
            global $wpdb;
            $userID = get_the_author_meta('ID');
            $sql = "SELECT DISTINCT ID, post_title, post_password, comment_ID,
                    comment_post_ID, user_id, comment_approved, comment_date_gmt,
                    comment_type, SUBSTRING(comment_content,1,30) AS com_excerpt
                    FROM $wpdb->comments
                    LEFT OUTER JOIN $wpdb->posts ON ($wpdb->comments.comment_post_ID =
                    $wpdb->posts.ID)
                    WHERE comment_approved = '1' AND comment_type = '' AND
                    post_password = '' AND user_id = '".$userID."'
                    ORDER BY comment_date_gmt DESC LIMIT 1";
            $comments = $wpdb->get_results($sql);
            if ($comments) :
                echo '<div class="comment-real"></div>';
                foreach ($comments as $comment) :
                    echo '<h4><a href="'.get_permalink($comment->ID).'#comment-'.$comment->comment_ID.'">&ldquo;'.strip_tags($comment->com_excerpt).'&hellip;&rdquo;&nbsp;</h4></a>';
                    echo '<p>' . mysql2date('M j, Y g:i:s a', $comment->comment_date_gmt) . ' ( ' . get_date_time_count($comment->comment_date_gmt) . ' আগে )</p>';
                endforeach;
            else :
                echo '<div class="comment-real"></div>';
                echo '<h4>আপনি সাম্প্রতিককালে কোন মন্তব্য করেননি।</h4>';
            endif;
        ?>
    </div>
</div>