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
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
Which keyword is used to create a class in PHP?
A). new
B). object
C). define
D). class
What is polymorphism in OOP?
A). Code duplication
B). Method overriding
C). Data encapsulation
D). Class instantiation
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 keyword is used to prevent a class from being inherited in PHP?
A). final
B). private
C). static
D). sealed
Which magic method is called when an undefined property is accessed in PHP?
A). __get()
B). __set()
C). __call()
D). __isset()
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
What does inheritance provide in OOP?
A). Code reusability
B). Data security
C). Object creation
D). Method overloading
Which keyword is used for inheritance in PHP?
A). inherit
B). extends
C). inherit_from
D). inherits