17. In PHP, what is the default visibility of class members?

What is the benefit of using polymorphism in PHP?

A). Increased complexity

B). Improved readability

C). Decreased flexibility

D). Increased maintainability

In PHP, what is the purpose of the abstract keyword?

A). To specify a class as final

B). To specify a class as abstract

C). To prevent a class from being instantiated

D). To mark a method as deprecated

What is encapsulation in PHP?

A). Hiding data implementation details

B). Exposing data publicly

C). Implementing interfaces

D). Inheriting properties

Which of the following is NOT a principle of OOP?

A). Inheritance

B). Polymorphism

C). Abstraction

D). Linearity

What is the default access modifier in PHP?

A). public

B). protected

C). private

D). No default modifier

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

A). parent

B). super

C). this

D). self

What does the protected access modifier mean in PHP?

A). Access to all

B). Access to parent class

C). Access to subclass

D). Restricted access

In PHP, what is the purpose of the final keyword?

A). To mark a method as deprecated

B). To prevent a class from being inherited

C). To specify a constant value

D). To define a global variable

Which of the following statements is true about polymorphism?

A). It allows a class to inherit from multiple classes

B). It allows a class to have multiple constructors

C). It allows a method to have multiple implementations

D). It allows a class to override parent class methods

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

A). this

B). parent

C). self

D). static