In PHP, what is the purpose of the abstract keyword?
A). To specify a class as final
B). To specify a class as abstract
C). To prevent a class from being instantiated
D). To mark a method as deprecated
Which keyword is used to access static properties or methods in PHP?
A). this
B). parent
C). self
D). static
Which of the following is NOT a principle of OOP?
A). Inheritance
B). Polymorphism
C). Abstraction
D). Linearity
Which keyword is used to access parent class properties in PHP?
A). parent
B). super
C). this
D). self
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 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
What is the benefit of using polymorphism in PHP?
A). Increased complexity
B). Improved readability
C). Decreased flexibility
D). Increased maintainability
Which access modifier in PHP restricts access to class members?
A). public
B). protected
C). private
D). access
In PHP, what is the default visibility of class members?
A). Public
B). Protected
C). Private
D). Global