Declaring array structures in PHP

ORM: Data Mapper vs Active Record

Which one is better and why?

Why and How to decouple your classes

Sorting functions in PHP

And the Spaceship Operator 馃殌馃殌馃殌

Functional Programming with Phel 馃悩

When PHP meets FP 馃殌馃殌馃殌馃寶

Immutability, the good way

Practical examples of immutability in PHP

Testing with Test Doubles?

Dummy, Stub, Spy, Mock or Fake

Why you should not use Reflection when testing

with some code examples

The importance of tests in our software

Introduction to unit testing with PHP