PHP OOP Test - 3 - Sanfoundry

1. The class from which the child class inherits is called ________

i) Child class
ii) Parent class
iii) Super class
iv) Base class

ii) and iv)

Only iii)

ii), iii) and iv)

Only i)

2. Which of the following advanced OOP features is/are not supported by PHP?

i) Method overloading
ii) Multiple Inheritance
iii) Namespaces
iv) Object Cloning

ii)

iii) and iv)

i) and ii)

3. Which version of PHP introduced the advanced concepts of OOP?

PHP 5.3

PHP 6

PHP 5

PHP 4

4. Which feature allows us to call more than one method or function of the class in single instruction?

Typecasting

Method chaining

Method adding

Method Including

5. If your object must inherit behavior from a number of sources you must use a/an

Interface

Static class

Abstract class

Object

6. Which of the following is/are true for an abstract class?
i) Abstract classes in PHP are declared with the help of abstract keyword.
ii) A class is declare abstract by using the keyword implements.
iii) It is a class that really isn’t supposed to ever be instantiated but instead serves as a base class.
iv) Attempting to instantiate an abstract class results in an error.

ii) and iv)

Only i)

ii), iii) and iv)

Only iii)

7. Which method is used to tweak an object's cloning behavior?

_clone

__clone()

object_clone()

clone()

8. If one intends to create a model that will be assumed by a number of closely related objects, which class must be used?

Normal class

Interface

Abstract class

Static class

9. Which magic method is used to implement overloading in PHP?

__wakeup

__call

__invoke

__unset

10. Which one of the following is the right way to clone an object?

_clone(targetObject);

destinationObject = _clone(targetObject);

destinationObject = clone targetObject;

destinationObject = clone(targetObject);