[Solved] What is a key difference between an abstract class and a trait in PHP? — Ans: A trait is used to reuse code in multiple classes, an abstract class is a base... | PHP

PHP - Interfaces and Traits

What is a key difference between an abstract class and a trait in PHP?

AAn abstract class can be instantiated, but a trait cannot.

BAn abstract class cannot have method implementations, but a trait can.

CA trait cannot have properties, but an abstract class can.

DA trait is used to reuse code in multiple classes, an abstract class is a base class.

Step-by-Step Solution

Solution:

Step 1: Understand traits and abstract classes
Traits are for code reuse across classes; abstract classes serve as base classes with some implemented methods.
Step 2: Analyze the options
Abstract classes can have properties and method implementations and cannot be instantiated directly. Traits can have properties and methods but are not classes.
Final Answer:
A trait is used to reuse code in multiple classes, an abstract class is a base class. -> Option D
Quick Check:
Trait = code reuse, Abstract class = base class [OK]

Quick Trick: Traits reuse code; abstract classes define base behavior [OK]

Common Mistakes:

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