Error Message: The Mysql Extension Is Deprecated ... Use Mysqli Or Pdo Instead in PHP and MySQL for Dynamic Web Sites: Visual QuickPro Guide (2nd Edition) Posted November 6, 2016 · Report reply Larry, I ordered the latest version of your book. From Amazon's "Look inside" feature, I'm sure it will answer my MySQLi questions (not sure if it delves into PDO, which would be a great thing for you to cover -- do you do it in the 4th edition or elsewhere?). In pondering this, I think you are missing a golden opportunity. You excel as an author (hence why I've bought several of your books), but you could be a titan of the computer world by offering a service I've never before heard of (and never imagined possible until a few minutes ago), for which there would be tremendous demand. If I have time, I might code a demo of it this winter.