Which keyword is used to prevent a class from being inherited in PHP?
A). final
B). private
C). static
D). sealed
What does inheritance provide in OOP?
A). Code reusability
B). Data security
C). Object creation
D). Method overloading
What is a class in PHP?
A). An instance of an object
B). A blueprint for creating objects
C). A method to access properties
D). A function to store variables
What is an object in PHP?
A). A class method
B). A function parameter
C). An instance of a class
D). A variable name
What is polymorphism in OOP?
A). Code duplication
B). Method overriding
C). Data encapsulation
D). Class instantiation
What is the purpose of the static keyword in PHP?
A). To access properties or methods without instantiating the class
B). To prevent a class from being instantiated
C). To define constants
D). To access superclass methods
Which magic method is called when an undefined property is accessed in PHP?
A). __get()
B). __set()
C). __call()
D). __isset()
Which keyword is used to access properties or methods within the same class in PHP?
A). public
B). protected
C). private
D). $this
Which concept allows a method in a subclass to have the same name as a method in its superclass?
A). Encapsulation
B). Inheritance
C). Polymorphism
D). Abstraction
What is the purpose of the interface keyword in PHP?
A). To define a class that cannot be instantiated
B). To define a contract for classes to implement
C). To define a blueprint for objects
D). To prevent a class from being inherited