Answer & Solution
parent::methodName()The parent keyword in PHP is used to access properties and methods of the parent class from within the child class.
parent::methodName()What does the protected access modifier mean in PHP?
A). Access to all
B). Access to parent class
C). Access to subclass
D). Restricted access
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
How is polymorphism achieved in PHP?
A). Method overriding
B). Method overloading
C). Method inheritance
D). Method encapsulation
What is the primary purpose of method overriding in PHP?
A). Hide implementation
B). Provide alternative
C). Prevent inheritance
D). Define in parent
What is the benefit of using polymorphism in PHP?
A). Increased complexity
B). Improved readability
C). Decreased flexibility
D). Increased maintainability
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
Which of the following is NOT a principle of OOP?
A). Inheritance
B). Polymorphism
C). Abstraction
D). Linearity
What is encapsulation in PHP?
A). Hiding data implementation details
B). Exposing data publicly
C). Implementing interfaces
D). Inheriting properties
Which keyword is used to access static properties or methods in PHP?
A). this
B). parent
C). self
D). static
What keyword is used in PHP to implement inheritance?
A). extends
B). implements
C). inherits
D). inherits_from