Object Oriented Questions And Answers

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Object Oriented PHP Questions and Answers

1. Which method scope prevents a method from being overridden by a subclass?

Object Oriented PHP Questions and Answers

2. Which of the following statements is/are true about Constructors in PHP? (i) PHP 4 introduced class constructors. (ii) Constructors can accept parameters. (iii) Constructors can call class methods or other functions (iv) Class constructors can call on other constructors.

Object Oriented PHP Questions and Answers

3. PHP recognizes constructors by the name.

Object Oriented PHP Questions and Answers

4. Which version of PHP introduced the instanceof keyword?

Object Oriented PHP Questions and Answers

5. Which one of the following functions is used to determine whether a class exists?

Object Oriented PHP Questions and Answers

6. Which one of the following functions is used to determine object type?

Object Oriented PHP Questions and Answers

7. Which one of the following keyword is used to inherit our subclass into a superclass?

Object Oriented PHP Questions and Answers

8. In the PHP code given below, what is/are the properties? < ?php class Example { public $name; function Sample() { echo "This is an example"; } } ?>

Object Oriented PHP Questions and Answers

9. Which keyword is used to refer to properties or methods within the class itself?

Object Oriented PHP Questions and Answers

10. Which keyword allows class members (methods and properties) to be used without needing to instantiate a new instance of the class?

Object Oriented PHP Questions and Answers

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Object Oriented PHP Questions - Object Oriented PHP Quiz Details

Online Test Name	Object Oriented PHP
Exam Type	Multiple Choice Questions
Category	Computer Science Engineering Quiz
Number of Questions	30

Object-oriented programming, also know as OOP, is a style of coding that allows the developers to group similar tasks into containers. At a glance, OOP can appear to be far more complicated than straightforward procedural, or inline, code. So, all the applicants need to know the basics of the Object Oriented PHP with the help of this post. From the basics to the high-level concepts of the OOP we have provided the Object Oriented PHP Quiz. Hence, the contenders need to take part in the Object Oriented PHP Mock Test and gather the questions along with the answers.

Object Oriented PHP Multiple Choice Questions

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Object Oriented PHP MCQ Quiz Answers with Solutions

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1. Which method scope prevents a method from being overridden by a subclass?

A. Abstract
B. Protected
C. Final
D. Static

Answer & Explanation

Answer: Option C

Explanation:

Final

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2. Which of the following statements is/are true about Constructors in PHP?

(i) PHP 4 introduced class constructors.

(ii) Constructors can accept parameters.

(iii) Constructors can call class methods or other functions

(iv) Class constructors can call on other constructors.

A. (ii) and (iii)
B. All of the mentioned
C. None of the mentioned
D. (ii), (iii) and (iv)

Answer & Explanation

Answer: Option B

Explanation:

All of the mentioned

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3. PHP recognizes constructors by the name.

A. classname()
B. _construct()
C. function _construct()
D. function __construct()

Answer & Explanation

Answer: Option D

Explanation:

A double underscore followed by the construct keyword. Its syntax is function __construct ([ argument1, argument2,.....]) { Class Initialization code }

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4. Which version of PHP introduced the instanceof keyword?

A. PHP 4
B. PHP 5
C. PHP 5.3
D. PHP 6

Answer & Explanation

Answer: Option B

Explanation:

Using instanceof keyword we can determine whether an object is an instance of a class. $manager = new Employee() â€¦ if ($manager instanceof Employee) echo â€œTrueâ€;