List of Listings

Chapter 2. Objects in PHP

Listing 2.1. Parent class for classes in which we want to log method calls

Listing 2.2. DateAndTime class with methods that can be logged

Listing 2.3. Autoloading class files

Chapter 3. Using PHP classes effectively

Listing 3.1. UserValidator class using private methods for readability

Listing 3.2. Making property accesses execute accessor methods

Chapter 4. Understanding objects and classes

Listing 4.1. Using method names to make code easier to read

Chapter 5. Understanding class relationships

Listing 5.1. NewsFinder class for getting news articles from a database

Listing 5.2. UserFinder class, similar to the NewsFinder class

Listing 5.3. DatabaseClient: extracted parent class to be used by NewsFinder and UserFinder

Listing 5.4. UserFinder: the class uncluttered by database basics

Chapter 6. Object-oriented principles

Listing 6.1. Using a switch statement to distinguish news from topics when saving them to a database

Listing 6.2. Using separate classes instead of the switch statement

Listing 6.3. Simplest-possible template engine using PHP as a template language

Listing 6.4. Extracting a separate class to handle the template file

Listing 6.5. Extracting a separate class to handle the template variables

Listing 6.6. The Template class that uses the extracted classes

Chapter 7. Design patterns

Listing 7.1. The Simplest-possible template adapter class

Listing 7.2. Adapter to make PHPTAL templates conform to the Smarty interface