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PHP Unit Testing for Beginners: A Practical Guide to Writing, Running, and Understanding Unit Tests in PHP with PHPUnit
Master PHP Unit Testing and Write Better, More Reliable Code
Are you a PHP developer struggling to implement effective testing in your projects? Do terms like "mocking," "test doubles," and "code coverage" seem confusing? This comprehensive guide demystifies unit testing in PHP and shows you exactly how to build robust, maintainable applications using PHPUnit—the industry-standard testing framework.
What Makes This Book Different
Unlike theoretical testing books, this guide focuses exclusively on practical PHP development scenarios. Every example uses real-world PHP code, familiar syntax, and common challenges you face daily. You'll learn by doing, not just reading.
Inside You'll
Fundamentals Made Simple - Understand core unit testing principles specifically tailored to PHP development, with clear explanations and zero jargon
Step-by-Step PHPUnit Setup - Get PHPUnit running in your environment quickly, whether you're using Composer, modern PHP frameworks, or legacy systems
Practical Testing Techniques - Write meaningful tests for classes, functions, and methods with real PHP examples you can adapt immediately
Advanced Assertions Mastered - Learn sophisticated assertion techniques that make your tests more expressive and maintainable
Mocks and Test Doubles Explained - Understand when and how to use stubs, mocks, and spies to isolate the code you're testing
Taming Legacy PHP Code - Proven strategies for introducing tests into existing codebases without massive refactoring efforts
Framework Integration - Specific guidance for testing Laravel and Symfony applications, including database testing and HTTP testing
Professional Workflows - Set up continuous integration, analyze code coverage, and establish testing pipelines for your PHP projects
Who Should Read This Book
This book is perfect
PHP developers new to automated testing
Self-taught programmers wanting to formalize their testing skills
Team leads introducing testing practices to their PHP projects
Experienced developers working with legacy PHP codebases
Anyone preparing for PHP development roles requiring testing knowledge
What You'll Be Able To Do
By the end of this book, you'll
Write comprehensive test suites for any PHP application
Identify what to test and what to skip
Refactor PHP code with confidence, knowing tests catch regressions
Debug failing tests quickly and efficiently
Integrate testing into your daily development workflow
Improve code quality measurably through coverage analysis
Bonus Reference Materials
The appendices provide quick-reference guides you'll return to
Complete PHPUnit command cheat sheet
Ready-to-use XML configuration examples
Common errors and their solutions
Curated list of Composer packages that enhance testing
Start Writing Better PHP Code Today
Testing
Are you a PHP developer struggling to implement effective testing in your projects? Do terms like "mocking," "test doubles," and "code coverage" seem confusing? This comprehensive guide demystifies unit testing in PHP and shows you exactly how to build robust, maintainable applications using PHPUnit—the industry-standard testing framework.
What Makes This Book Different
Unlike theoretical testing books, this guide focuses exclusively on practical PHP development scenarios. Every example uses real-world PHP code, familiar syntax, and common challenges you face daily. You'll learn by doing, not just reading.
Inside You'll
Fundamentals Made Simple - Understand core unit testing principles specifically tailored to PHP development, with clear explanations and zero jargon
Step-by-Step PHPUnit Setup - Get PHPUnit running in your environment quickly, whether you're using Composer, modern PHP frameworks, or legacy systems
Practical Testing Techniques - Write meaningful tests for classes, functions, and methods with real PHP examples you can adapt immediately
Advanced Assertions Mastered - Learn sophisticated assertion techniques that make your tests more expressive and maintainable
Mocks and Test Doubles Explained - Understand when and how to use stubs, mocks, and spies to isolate the code you're testing
Taming Legacy PHP Code - Proven strategies for introducing tests into existing codebases without massive refactoring efforts
Framework Integration - Specific guidance for testing Laravel and Symfony applications, including database testing and HTTP testing
Professional Workflows - Set up continuous integration, analyze code coverage, and establish testing pipelines for your PHP projects
Who Should Read This Book
This book is perfect
PHP developers new to automated testing
Self-taught programmers wanting to formalize their testing skills
Team leads introducing testing practices to their PHP projects
Experienced developers working with legacy PHP codebases
Anyone preparing for PHP development roles requiring testing knowledge
What You'll Be Able To Do
By the end of this book, you'll
Write comprehensive test suites for any PHP application
Identify what to test and what to skip
Refactor PHP code with confidence, knowing tests catch regressions
Debug failing tests quickly and efficiently
Integrate testing into your daily development workflow
Improve code quality measurably through coverage analysis
Bonus Reference Materials
The appendices provide quick-reference guides you'll return to
Complete PHPUnit command cheat sheet
Ready-to-use XML configuration examples
Common errors and their solutions
Curated list of Composer packages that enhance testing
Start Writing Better PHP Code Today
Testing
367 pages, Kindle Edition
Published December 8, 2025
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