The document discusses Test Driven Development (TDD) in PHP. It provides an overview of TDD, the benefits it provides like high cohesion and loose coupling, and some drawbacks. It then demonstrates a live coding example of TDD in PHP by building a simple integer calculator using PHPUnit for a math tutor application. Resources for learning more about TDD, PHPUnit, and Xdebug are also included.

1. TDD in PHP: A Brief Example

2. About Me Jeremy Kendall PHP Developer since 2001 Organizer Memphis PHP Contributor to FRAPI project (getfrapi.com) [email_address] @JeremyKendall http://jeremykendall.net

3. TDD in PHP: A Brief Example Test Driven Development, you say?

4. Frankly, my dear . . .

5. Why You Should Give A Damn Test Driven Development is perhaps one of the best and fastest ways to improve your understanding and command of object-oriented principles and best practices.

6. What is TDD? From Wikipedia:

7. ” Test Driven Development (TDD) is a software development process that relies on the repetition of a very short development cycle . . .”

8. TDD Development Process Write a test

9. Run all tests, watch new test fail

10. Write just enough code to make the test pass

11. Run all tests, watch new test pass

12. Lather, rinse, repeat . . .

13. Refactor

14. TDD: The Benefits High cohesion, loose coupling

15. Confidence

16. Faster time to resolution