Which access modifier in PHP restricts access to class members?
A). public
B). protected
C). private
D). access
What is encapsulation in PHP?
A). Hiding data implementation details
B). Exposing data publicly
C). Implementing interfaces
D). Inheriting properties
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
How is polymorphism achieved in PHP?
A). Method overriding
B). Method overloading
C). Method inheritance
D). Method encapsulation
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 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
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
In PHP, what is the default visibility of class members?
A). Public
B). Protected
C). Private
D). Global
What keyword is used in PHP to implement inheritance?
A). extends
B). implements
C). inherits
D). inherits_from
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