Answer & Solution
Answer: Option B
Solution:
In PHP, the final keyword is used to prevent a class from being inherited, making it impossible to create child classes from it.
Q
In PHP, what is the purpose of the final keyword?
Related Questions on Average
What is the default access modifier in PHP?
A). public
B). protected
C). private
D). No default modifier
Which access modifier in PHP restricts access to class members?
A). public
B). protected
C). private
D). 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
What is encapsulation in PHP?
A). Hiding data implementation details
B). Exposing data publicly
C). Implementing interfaces
D). Inheriting properties
Which of the following is NOT a principle of OOP?
A). Inheritance
B). Polymorphism
C). Abstraction
D). Linearity
What is the benefit of using polymorphism in PHP?
A). Increased complexity
B). Improved readability
C). Decreased flexibility
D). Increased maintainability
What is the purpose of method overloading in PHP?
A). Different parameters
B). Same parameters
C). Override a method
D). Access private methods
What keyword is used in PHP to implement inheritance?
A). extends
B). implements
C). inherits
D). inherits_from
How is polymorphism achieved in PHP?
A). Method overriding
B). Method overloading
C). Method inheritance
D). Method encapsulation
What does the final keyword do when applied to a method in PHP?
A). Mark as deprecated
B). Prevent override
C). Define as abstract
D). Enable instantiation