Answer & Solution
Answer: Option B
Solution:
The interface keyword in PHP is used to define a contract for methods that implementing classes must follow, but it cannot contain any method implementations.
Q
What is the purpose of the interface keyword in PHP?
Related Questions on Average
Which of the following is NOT a principle of OOP?
A). Inheritance
B). Polymorphism
C). Abstraction
D). Linearity
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
What is encapsulation in PHP?
A). Hiding data implementation details
B). Exposing data publicly
C). Implementing interfaces
D). Inheriting properties
In PHP, what is the purpose of the final keyword?
A). To mark a method as deprecated
B). To prevent a class from being inherited
C). To specify a constant value
D). To define a global variable
Which access modifier in PHP restricts access to class members?
A). public
B). protected
C). private
D). access
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 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 main purpose of encapsulation?
A). To make classes more readable
B). To hide implementation details
C). To increase code complexity
D). To prevent inheritance
What is the benefit of using polymorphism in PHP?
A). Increased complexity
B). Improved readability
C). Decreased flexibility
D). Increased maintainability
What keyword is used in PHP to implement inheritance?
A). extends
B). implements
C). inherits
D). inherits_from