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
How is polymorphism achieved in PHP?
A). Method overriding
B). Method overloading
C). Method inheritance
D). Method encapsulation
What is encapsulation in PHP?
A). Hiding data implementation details
B). Exposing data publicly
C). Implementing interfaces
D). Inheriting properties
Which access modifier in PHP restricts access to class members?
A). public
B). protected
C). private
D). access
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
In PHP, what is the default visibility of class members?
A). Public
B). Protected
C). Private
D). Global
What is the default access modifier in PHP?
A). public
B). protected
C). private
D). No default modifier
What is the primary purpose of method overriding in PHP?
A). Hide implementation
B). Provide alternative
C). Prevent inheritance
D). Define in parent
Which of the following statements is true about polymorphism?
A). It allows a class to inherit from multiple classes
B). It allows a class to have multiple constructors
C). It allows a method to have multiple implementations
D). It allows a class to override parent class methods
What is the purpose of method overloading in PHP?
A). Different parameters
B). Same parameters
C). Override a method
D). Access private methods
Which of the following is an advantage of inheritance in PHP?
A). Increases code reusability
B). Decreases code maintainability
C). Adds complexity to the code
D). Makes code less modular