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 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
How is polymorphism achieved in PHP?
A). Method overriding
B). Method overloading
C). Method inheritance
D). Method encapsulation
What keyword is used in PHP to implement inheritance?
A). extends
B). implements
C). inherits
D). inherits_from
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 default visibility of class members?
A). Public
B). Protected
C). Private
D). Global
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
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 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