[Solved] Find the error in this PHP code:abstract class Fruit { abstract protected function color(); } class Apple extends Fruit { public function color() { return "Red"; } } | PHP

PHP - Inheritance and Polymorphism

Find the error in this PHP code:

abstract class Fruit {
  abstract protected function color();
}

class Apple extends Fruit {
  public function color() {
    return "Red";
  }
}

AMethod color() visibility must be protected or less in subclass

BNo error, code is correct

CCannot override abstract method color()

DAbstract method color() must be public in subclass

Step-by-Step Solution

Solution:

Step 1: Check abstract method declaration
Fruit declares abstract protected function color().
Step 2: Check subclass implementation
Apple implements color() as public, which is allowed.
Step 3: Visibility rules in PHP
Child class methods can have the same or less restrictive visibility than the parent (public is less restrictive than protected).
Final Answer:
No error, code is correct -> Option B
Quick Check:
Child visibility same or wider than parent [OK]

Quick Trick: Child method visibility must be same or less restrictive than parent [OK]

Common Mistakes:

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