Clean Code with PHP examples

This is a course about useful clean code principles.
My aim is to teach you concepts that you can use every time you write code.

Clean Code can help you:

– Write better PHP code and thus become a better PHP programmer

– Create easy to maintain projects

– Perform better during interviews by showing knowledge of advanced programming concepts

The course has PHP examples and I sometimes mention things like Symfony and MVC.

The course is structured in 4 parts:

1. Introduction – where we discuss what is clean code and why it’s important

2. Small Functions – I gave small functions an entire section because I think its one of the most important principles of clean code, together with small classes, Single Responsibility Principle and Not crossing Different Levels of Abstraction.

3. Clean code: Fundamental Principles – I discuss here about fundamental things like method and variables names, parameters, comments and exceptions

4. Clean code: Advanced Principles – Here I talk about more abstract topics like the difference between an OOP Object and a Data Structure Object, Composition over Inheritance, Symptoms of Bad Code, State, Low Coupling – High Cohesion, Command and Query Separation, Tell Don’t Ask, The Law of Demeter, YAGNI and more.