Learning PHP Design Patterns

by William Sanders

Overview

Build server-side applications more efficiently—and improve your PHP programming skills in the process—by learning how to use design patterns in your code. This book shows you how to apply several object-oriented patterns through simple examples, and demonstrates many of them in full-fledged working applications.

Learn how these reusable patterns help you solve complex problems, organize object-oriented code, and revise a big project by only changing small parts. With Learning PHP Design Patterns, you’ll learn how to adopt a more sophisticated programming style and dramatically reduce development time.

• Learn design pattern concepts, including how to select patterns to handle specific problems
• Get an overview of object-oriented programming concepts such as composition, encapsulation, polymorphism, and inheritance
• Apply creational design patterns to create pages dynamically, using a factory method instead of direct instantiation
• Make changes to existing objects or structure without having to change the original code, using structural design patterns
• Use behavioral patterns to help objects work together to perform tasks
• Interact with MySQL, using behavioral patterns such as Proxy and Chain of Responsibility
• Explore ways to use PHP’s built-in design pattern interfaces

Product Details

ISBN-13:	9781449344870
Publisher:	O'Reilly Media, Incorporated
Publication date:	02/11/2013
Sold by:	Barnes & Noble
Format:	eBook
Pages:	362
File size:	9 MB

About the Author

Dr. William B. Sanders is a Professor of Multimedia Web Design and Development at the University of Hartford. He teaches courses in PHP, MySQL, C#, SQL, HTML5, CSS, and ActiionScript 3.0 among other Internet languages. He co-authored ActionScript 3.0 Design Patterns (O’Reilly, 2007) and has been actively working with design patterns in PHP for several years. He has published 45 computer and computer-related books, written software ranging from Basic to Assembly Language to Flash Media Server and served as a consultant and beta tester for different computer software companies including Macromedia and Adobe. He also is an Apple iOS Devloper.

Table of Contents

Dedication:; Preface; Audience; Assumptions This Book Makes; Contents of This Book; Conventions Used in This Book; Using Code Examples; Safari® Books Online; How to Contact Us; Acknowledgments; Easing into the Fundamentals of Design Patterns; Chapter 1: PHP and Object-Oriented Programming; 1.1 Entering into Intermediate and Advanced Programming; 1.2 Why Object-Oriented Programming?; 1.3 Classes and Objects; 1.4 The Client as a Requester Class; 1.5 What About Speed?; 1.6 What’s Wrong with Sequential and Procedural Programming?; Chapter 2: Basic Concepts in OOP; 2.1 Abstraction; 2.2 Encapsulation; 2.3 Inheritance; 2.4 Polymorphism; 2.5 Easy Does It; Chapter 3: Basic Design Pattern Concepts; 3.1 The MVC Loosens and Refocuses Programming; 3.2 Basic Principles of Design Patterns; 3.3 Design Patterns as a Big Cheat Sheet; 3.4 Choosing a Design Pattern; Chapter 4: Using UMLs with Design Patterns; 4.1 Why Unified Modeling Language (UML)?; 4.2 Class Diagrams; 4.3 Participant Symbols; 4.4 Relationship Notations; 4.5 Object Diagrams; 4.6 Interaction Diagrams; 4.7 The Role of Diagrams and Notations in Object-Oriented Programming; 4.8 Tools for UMLs; 4.9 Other UMLs; Creational Design Patterns; Chapter 5: Factory Method Design Pattern; 5.1 What Is the Factory Method Pattern?; 5.2 When to Use the Factory Method; 5.3 A Minimalist Example; 5.4 Accommodating Class Changes; Chapter 6: Prototype Design Pattern; 6.1 What Is the Prototype Design Pattern?; 6.2 When to Use the Prototype Pattern; 6.3 The Clone Function; 6.4 A Minimalist Prototype Example; 6.5 Adding OOP to the Prototype; 6.6 The Prototype in PHP Land; Structural Design Patterns; Chapter 7: The Adapter Pattern; 7.1 What Is the Adapter Pattern?; 7.2 When to Use the Adapter Pattern; 7.3 The Adapter Pattern Using Inheritance; 7.4 The Adapter Pattern Using Composition; Chapter 8: Decorator Design Pattern; 8.1 What Is the Decorator Pattern?; 8.2 When to Use the Decorator Pattern; 8.3 Minimalist Decorator; 8.4 What About Wrappers?; 8.5 Decorators with Multiple Components; 8.6 HTML User Interface (UI); Behavioral Design Patterns; Chapter 9: The Template Method Pattern; 9.1 What Is the Template Method Pattern?; 9.2 When to Use the Template Method; 9.3 Using the Template Method with Images and Captions: A Minimal Example; 9.4 The Client; 9.5 The Hollywood Principle; 9.6 Using the Template Method with Other Design Patterns; 9.7 The Factory Method Participants; 9.8 The Hook in the Template Method Design Pattern; 9.9 The Small and Mighty Template Method; Chapter 10: The State Design Pattern; 10.1 What Is the State Pattern?; 10.2 When to Use the State Pattern?; 10.3 The State Machine; 10.4 Light On, Light Off: The Minimal State Design Pattern; 10.5 Adding States; 10.6 The Navigator: More Choices and Cells; 10.7 The State Pattern and PHP; MySQL and PHP Design Patterns; Chapter 11: A Universal Class for Connections and a Proxy Pattern for Security; 11.1 A Simple Interface and Class for MySQL; 11.2 The Protection Proxy for Login; 11.3 The Proxy and Real-World Security; Chapter 12: The Flexibility of the Strategy Design Pattern; 12.1 Encapsulating Algorithms; 12.2 A Minimalist Strategy Pattern; 12.3 Expanded Strategy Pattern with Data Security and Parameterized Algorithms; 12.4 The Flexible Strategy Pattern; Chapter 13: The Chain of Responsibility Design Pattern; 13.1 Passing the Buck; 13.2 The Chain of Responsibility in a MySQL Help Desk; 13.3 Automated Chain of Responsibility and Factory Method; 13.4 Ease of Update; Chapter 14: Building a Multidevice CMS with the Observer Pattern; 14.1 Built-In Observer Interfaces; 14.2 When to Use the Observer Pattern; 14.3 Using SPL with the Observer Pattern; 14.4 Free Range PHP and the Observer Pattern; 14.5 Making a Simple CMS; 14.6 Thinking OOP; Colophon;