Q
What keyword is used in PHP to implement inheritance?

Answer & Solution

Answer: Option A
Solution:
class Dog extends Animal { }
In PHP, the extends keyword is used to implement inheritance, where the child class (Dog) inherits from the parent class (Animal).
Related Questions on Average

Which access modifier in PHP restricts access to class members?

A). public

B). protected

C). private

D). access

What is the default access modifier in PHP?

A). public

B). protected

C). private

D). No default modifier

Which keyword is used to access static properties or methods in PHP?

A). this

B). parent

C). self

D). static

Which of the following is NOT a principle of OOP?

A). Inheritance

B). Polymorphism

C). Abstraction

D). Linearity

Which keyword is used to access parent class properties in PHP?

A). parent

B). super

C). this

D). self

What is the benefit of using polymorphism in PHP?

A). Increased complexity

B). Improved readability

C). Decreased flexibility

D). Increased maintainability

What is the purpose of the interface keyword in PHP?

A). Finalize a class

B). Define a contract

C). Abstract a class

D). Create a subclass

What does the final keyword do when applied to a method in PHP?

A). Mark as deprecated

B). Prevent override

C). Define as abstract

D). Enable instantiation

What is the main purpose of encapsulation?

A). To make classes more readable

B). To hide implementation details

C). To increase code complexity

D). To prevent inheritance

Which of the following is an advantage of inheritance in PHP?

A). Increases code reusability

B). Decreases code maintainability

C). Adds complexity to the code

D). Makes code less modular