midPHP
What are traits in PHP?
Updated May 24, 2026
Short answer
Traits enable code reuse across unrelated classes.
Deep explanation
Traits solve limitations of single inheritance by allowing shared methods to be included in multiple classes.
Real-world example
Authentication and logging behaviors are commonly shared using traits.
Common mistakes
- Overusing traits and creating hidden dependencies.
Follow-up questions
- Can traits contain properties?
- What happens during method conflicts?