What happens if you try to extend a final class in PHP?

easy📝 Conceptual Q1 of 15

PHP - Inheritance and Polymorphism

What happens if you try to extend a final class in PHP?

AThe final class becomes abstract automatically.

BThe child class inherits all methods normally.

CThe child class can override final methods.

DIt causes a fatal error and the script stops.

Step-by-Step Solution

Solution:

Step 1: Understand the meaning of final class
A final class cannot be extended by any other class in PHP.
Step 2: Check what happens when extending a final class
Trying to extend a final class causes a fatal error and stops the script.
Final Answer:
It causes a fatal error and the script stops. -> Option D
Quick Check:
final class extension = fatal error [OK]

Quick Trick: Final classes cannot be extended; trying causes error [OK]

Common Mistakes:

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