Which keyword is used to prevent a class from being inherited in PHP?
A). final
B). private
C). static
D). sealed
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
What is the purpose of the parent:: keyword in PHP?
A). To access properties of the parent class
B). To call methods of the parent class
C). To instantiate the parent class
D). To prevent inheritance
What is polymorphism in OOP?
A). Code duplication
B). Method overriding
C). Data encapsulation
D). Class instantiation
Which OOP concept allows a class to implement methods with the same name but different parameters?
A). Overloading
B). Overriding
C). Inheritance
D). Polymorphism
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
What is the visibility of properties or methods declared as private in PHP?
A). Public
B). Protected
C). Private
D). Accessible only within the class
What is encapsulation in OOP?
A). Grouping related classes
B). Hiding internal details of an object
C). Creating objects from classes
D). Inheriting properties from a superclass
Which method is automatically called when an object is destroyed in PHP?
A). __delete()
B). __destroy()
C). __dispose()
D). __destruct()
What is an object in PHP?
A). A class method
B). A function parameter
C). An instance of a class
D). A variable name