Book Image

Mastering PHP 7

By : Branko Ajzele
Book Image

Mastering PHP 7

By: Branko Ajzele

Overview of this book

PHP is a server-side scripting language that is widely used for web development. With this book, you will get a deep understanding of the advanced programming concepts in PHP and how to apply it practically The book starts by unveiling the new features of PHP 7 and walks you through several important standards set by PHP Framework Interop Group (PHP-FIG). You’ll see, in detail, the working of all magic methods, and the importance of effective PHP OOP concepts, which will enable you to write effective PHP code. You will find out how to implement design patterns and resolve dependencies to make your code base more elegant and readable. You will also build web services alongside microservices architecture, interact with databases, and work around third-party packages to enrich applications. This book delves into the details of PHP performance optimization. You will learn about serverless architecture and the reactive programming paradigm that found its way in the PHP ecosystem. The book also explores the best ways of testing your code, debugging, tracing, profiling, and deploying your PHP application. By the end of the book, you will be able to create readable, reliable, and robust applications in PHP to meet modern day requirements in the software industry.
Table of Contents (24 chapters)
Title Page
Credits
About the Author
About the Reviewers
www.PacktPub.com
Customer Feedback
Preface
16
Debugging, Tracing, and Profiling

Chapter 16. Debugging, Tracing, and Profiling

Tools such as PHPUnit and Behat take an automated approach to testing software. They give us a great level of reassurance that our application will deliver according to the tests. The tests, however, like the code itself, are subject to flaws. Be it a faulty test code or an incomplete test case, having a fully written test for something does not necessarily mean our code is perfect in a bug-free and performance-optimized way.

More often than not, there are unexpected bugs and performance issues that are far from obvious during development cycles, only to occasionally resurface at production stage. While perfect code is a far-reaching concept or, at the very least, a subject for debate, there certainly is more we can do to improve the quality of our software. To complete the canvas of software testing, a more methodical process and thorough insight into the application is required during its runtime.

This is where debugging kicks in. The term is...