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PHP Academy · Lesson

Traits for Code Reuse

Mix in reusable code blocks into classes with trait.

Intro: PHP Traits

A trait is a reusable code unit that can be mixed into any class. It solves the horizontal code reuse problem in single-inheritance languages. Use traits when multiple unrelated classes need the same behavior.

Key Concepts

Key concepts:

  • Declare with trait Name {}
  • Mix in with use TraitName; inside a class
  • Traits can have properties and methods
  • Conflict resolution with insteadof and as

All lessons in this course

  1. Extending Classes with Inheritance
  2. Abstract Classes and Methods
  3. Implementing Interfaces
  4. Traits for Code Reuse
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