PHP, MySQL, & JavaScript All-in-One For Dummies

Chapter 2

Implementing an Object-Oriented Application

IN THIS CHAPTER

Handling web events

Creating code to work with objects

Test-driving your application

If you’ve just finished reading through Chapter 1 of this minibook, take a moment and take a deep breath! You did a lot of work preparing the database, PHP objects, and the HTML and CSS templates required for the AuctionHelper application. This chapter walks through how to create the rest of the PHP code required to complete the application. First, it walks through the overall layout of the AuctionHelper application links and buttons, and discusses how to handle the browser events triggered by them. Those are how your application users interact with the website. Then it goes through all the PHP code required to work with the bidder and item objects that you’ve already created. Finally, the chapter finishes off by discussing how to test out an application to ensure things are working correctly.

Working with Events

Web-based applications use what’s called event-driven programming. In event-driven programming, the flow of the program is based on events that the program user generates from the user interface. The program displays ...