What keyword is used in PHP to implement inheritance?
A). extends
B). implements
C). inherits
D). inherits_from
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 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
What is the purpose of method overloading in PHP?
A). Different parameters
B). Same parameters
C). Override a method
D). Access private methods
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
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 is NOT a principle of OOP?
A). Inheritance
B). Polymorphism
C). Abstraction
D). Linearity
Which keyword is used to access static properties or methods in PHP?
A). this
B). parent
C). self
D). static