PHP 7: Real World Application Development

Chapter 13. Best Practices, Testing, and Debugging

In this chapter, we will cover the following topics:

• Using Traits and Interfaces
• Universal exception handler
• Universal error handler
• Writing a simple test
• Writing a test suite
• Generating fake test data
• Customizing sessions using session_start parameters

Introduction

In this chapter, we will show you how traits and interfaces work together. Then, we turn our attention to the design of a fallback mechanism that will catch errors and exceptions in situations where you were not able (or forgot) to define specific try/catch blocks. We will then venture into the world of unit testing, showing you first how to write simple tests, and then how to group those tests together into test suites. Next, we define a class ...