PHP 8 Objects, Patterns, and Practice: Mastering OO Enhancements, Design Patterns, and Essential Development Tools

© Matt Zandstra 2021

M. ZandstraPHP 8 Objects, Patterns, and Practicehttps://doi.org/10.1007/978-1-4842-6791-2_11

11. Performing and Representing Tasks

Matt Zandstra¹  

(1)

Brighton, UK

 

In this chapter, we get active. I look at patterns that help you to get things done, whether interpreting a mini-language or encapsulating an algorithm.

This chapter will walk you through several patterns:

• The Interpreter pattern: Building a mini-language interpreter that can be used to create scriptable applications

• The Strategy pattern: Identifying algorithms in a system and encapsulating them into their own types

• The Observer pattern: Creating hooks for alerting disparate objects about system events

• The Visitor pattern: Applying an operation to all the nodes in a tree ...