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
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
Which OOP concept allows a class to inherit from multiple classes?
A). Inheritance
B). Encapsulation
C). Polymorphism
D). Multiple inheritance
What is an object in PHP?
A). A class method
B). A function parameter
C). An instance of a class
D). A variable name
Which keyword is used to create an object in PHP?
A). create
B). instance
C). new
D). make
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 purpose of the __construct() method in PHP?
A). To define class properties
B). To create objects
C). To initialize object properties
D). To access superclass methods
Which OOP concept allows a class to implement methods with the same name but different parameters?
A). Overloading
B). Overriding
C). Inheritance
D). Polymorphism
Which magic method is called when an undefined property is accessed in PHP?
A). __get()
B). __set()
C). __call()
D). __isset()
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