PHP Objects, Patterns and Practice (3rd edition)
CHAPTER 6 ■ OBJECTS AND DESIGN ■Note Look at Figures 6–16 and 6–20. Notice how the class diagram illustrates polymorphism, showi ...
CHAPTER 6 ■ OBJECTS AND DESIGN ...
P A R T 3 ■ ■ ■ Patterns ...
CHAPTER 1 ■ PHP: DESIGN AND MANAGEMENT ...
C H A P T E R 7 ■ ■ ■ What Are Design Patterns? Why Use Them? Most problems we encounter as programmers have been handled time a ...
■Chapter 7: What Are Design Patterns? Why Use Them? .............................................................. Problems tend ...
CHAPTER 7 ■ WHAT ARE DESIGN PATTERNS? WHY USE THEM? often a sign that solutions have been applied where the problem and context ...
CHAPTER 7 ■ WHAT ARE DESIGN PATTERNS? WHY USE THEM? Patterns describe a problem space with great care. The problem is described ...
CHAPTER 7 ■ WHAT ARE DESIGN PATTERNS? WHY USE THEM? Sample Code: I always skip ahead to this section. I find that a simple code ...
CHAPTER 7 ■ WHAT ARE DESIGN PATTERNS? WHY USE THEM? ME: I’m thinking of using a Composite. BOB: I don’t think you’ve thought tha ...
CHAPTER 7 ■ WHAT ARE DESIGN PATTERNS? WHY USE THEM? PHP and Design Patterns There is little in this chapter that is specific to ...
CHAPTER 7 ■ WHAT ARE DESIGN PATTERNS? WHY USE THEM? ...
C H A P T E R 8 ■ ■ ■ Some Pattern Principles Although design patterns simply describe solutions to problems, they tend to empha ...
■Chapter 8: Some Pattern Principles ............................................................................................ ...
CHAPTER 8 ■ SOME PATTERN PRINCIPLES Figure 8–2. A poor inheritance structure Figure 8–2 shows a hierarchy that is clearly faulty ...
CHAPTER 8 ■ SOME PATTERN PRINCIPLES function chargeType() { switch ( $this->costtype ) { CASE self::TIMED : return "hourly ra ...
CHAPTER 8 ■ SOME PATTERN PRINCIPLES Figure 8–3. Inheritance hierarchy improved by removing cost calculations from subclasses I h ...
CHAPTER 8 ■ SOME PATTERN PRINCIPLES abstract class Lesson { private $duration; private $costStrategy; function __construct( $dur ...
CHAPTER 8 ■ SOME PATTERN PRINCIPLES return "hourly rate"; } } class FixedCostStrategy extends CostStrategy { function cost( Less ...
CHAPTER 8 ■ SOME PATTERN PRINCIPLES to which it is independent is related to the likelihood that your changes will cause other p ...
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