PHP5 OOPS TUTORIAL PDF

Definition of a Class A class is user defined data type that contains attributes or data members; and methods which work on the data members. You will learn more about data members and methods in following tutorials. This tutorial focuses only on learning how to create a Class in PHP5 To create a class, you need to use the keyword class followed by the name of the class. The name of the class should be meaningful to exist within the system See note on naming a class towards the end of the article.

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Definition of a Class A class is user defined data type that contains attributes or data members; and methods which work on the data members. You will learn more about data members and methods in following tutorials.

This tutorial focuses only on learning how to create a Class in PHP5 To create a class, you need to use the keyword class followed by the name of the class. The name of the class should be meaningful to exist within the system See note on naming a class towards the end of the article. Note: You can read more about private, public and protected in this tutorial on Access Specifiers Naming Conventions Naming Convention for Class: As a general Object Oriented Programming practice, it is better to name the class as the name of the real world entity rather than giving it a fictitious name.

For example, to represent a customer in your OOAD model; you should name the class as Customer instead of Person or something else. Naming Conventions for Methods: The same rule applies for class methods. The name of the method should tell you what action or functionality it will perform. So ask yourself what you would name a method which stores data in the database. If you said storeDataInDB you were right. Look at the manner in which the method storeDataInDB has been named. The first character of the first word of the method is lower case i.

You should always give meaningful names to your attributes. In the next tutorial we will see how to create objects in PHP5. Feel free to write comments if you need more examples or if you need to ask a question on PHP5 Class. You can also subscribe to my notification service to be informed as an when a new tutorial article goes online.

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Object Oriented PHP for Beginners

Procedural programming A procedural programming includes functions methods that can be called from the main flow of the program. The flow of the program jumps to the function method , executes the code within the module, and then returns to the next statement in the main flow of the program. Object-oriented programming OOP OOP is a design philosophy that uses objects and methods rather than linear concepts of procedures and tasks procedural programming to accomplish programmatic goals. An object is a self-sustainable construct that enables re-usability of code. A method specifies one operation without providing any details to describe how the operation should be carried out.

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Getting Started with Objected Oriented Programming in PHP 7

Similarly we can imagine our car made of different objects like wheel, steering, gear etc. Same way there is object oriented programming concepts which assume everything as an object and implement a software using different objects. You can think of a class as a template for making many instances of the same kind or class of object. You define a class once and then make many objects that belong to it.

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