... and the basics of JSON.Chapter 4: Using PHP and MySQL on the Server starts putting the server to work, using PHP to generate dynamic output, and MySQL to manipulate and store the backend data. ... tested the code under several environments, but mostly with the Apache 2 web server, and MySQL 4.1 and MySQL 5 databases. You can choose, however, to use another web server, or another database ... client), how to implement error-handling code in your server-side PHP code, and how to work with MySQL databases.Chapter 5: AJAX Form Validation creates a form validation application that implements...