Most Frequently Asked PHP OOPS Interview Questions

Posted by nick on October 19th, 2019

1) What Is Object-Oriented Programming?

  • An object-oriented programming system (OOPs) is a programming language model organized around objects.
  • Objects are instances of classes, which are used to interact with one another.
  • An application can be of any type like it can be a web-based application, windows based application, etc. In object-oriented programming, everything revolves around the objects and class.
  • OOPS is shortened as an Object-Oriented Programming system in which programs are regarded as a collection of states.

2) Explain the basic concepts of OOPS?

Concepts of OOPS:

  • Abstraction
  • Encapsulation
  • Inheritance
  • Polymorphism

3) What Are Properties Of Object-Oriented Systems?

  • Inheritance
  • Data Encapsulation
  • Extensible data types and classes
  • Support for complex data types
  • Aggregation
  • Association

4) What is a class?

  • A class is simply a type of object. It is the plan or template that describes the details of an object.

5) What is the Object?

  • An object is an instance of a class, It has its own behavior, state behavior, and connections.

6) What is Encapsulation?

  • Encapsulation is a part of an object, and it describes all data. That hidden data are restricted to the members of that class.
  • Class is Public, Private, Protected, Internal and Protected Internal.

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nick
Joined: October 19th, 2019
Articles Posted: 1