OOPS in PHP

Object Oriented Programming in PHP This article introduces Object Oriented Programming (OOP) in PHP. Luis shows you how to code less and better by using some OOP concepts and PHP tricks.Object Oriented Programming in any language is the use of objects to represent functional parts of an application and real life entities. For example you [...]

An Introduction to PHP Classes

About Object-Oriented Programming Many programming languages are object-oriented. However, the method of defining an object varies from language to language. Some examples of object-oriented languages are: Java JavaScript C++ and finally, PHP Basic Class Programming in PHP In PHP, an object is defined as this: class myObject { //variables and methods go here } Methods [...]

OOPS in PHP 5 – Define Attributes for Class

We have seen on how to declare class and now we have to define the attributes or the data member that will hold the data within the class. This tutorial will guide you to create attributes for the class. What are Attributes for Class? In OOPS attributes hold the data required for the class to [...]

OOPS in PHP 5 – Declaring Class and Initializing Class Object

In Object Oriented Programming Classes is the main entity and all other features of OOP work around the Classes. In this tutorial we will be discussing on declaring class in PHP5. Also covered on how to instantiate the class object. Declaring Class in PHP5: In PHP5 you create a new class using “class” keyword. The [...]

OOPS in PHP 5 – Parent Keyword

This article will guide you through the PARENT keyword used in OOPS implementation in PHP5. Parent Keyword allows to forcefully call the parent method and not the child method. This is useful when you are implementing Polymorphism in PHP 5. This keyword is also very useful if you want the derived class to call the [...]

OOPS in PHP 5 – Defining Class Constants

In PHP5 you can defines class level constants that will not change its value within the class scope. For using class constants PHP5 have introduced a new Keyword “const“. Only a string or numeric value can be assigned to a constant. Arrays, Objects and expressions cannot be assigned to a constant. A class constant can [...]

OOPS in PHP 5 – __destruct() Method

Destructor are special function in Object Oriented Programming. It gets called automatically whenever object of a class is destroyed or goes out of scope. This is useful for clean up operation before cleaning the memory. PHP 5 uses special keyword “__destruct” to define destructor of the class. Example on Destructor Class in PHP 5: < [...]

OOPS in PHP 5 – instanceOf Operator

PHP5 has come up with a new operator “instanceof”. This operator is used to check whether the objects passed as operands to this method belongs to the same class or not. This is very useful in runtime environment where you want to know the parent of the class. If left operand belongs to the child [...]

OOPS in PHP 5 – __construct() Method

Constructor are special function in Object Oriented Programming. It gets called automatically whenever object of a class is created. This is useful for performing any pre operation before we start to call the methods of the class. PHP5 uses special keyword “__construct” to define constructor of the class. Example 1: < ? class employee { [...]

OOPS in PHP 5 – Function Overriding

This article will guide you through the Function Overriding which forms the common feature of OOPS. In Object Oriented Programming Function Overriding refers the base class and the child class methods with same name, signature and access specifier. Example – Function Overriding < ? class Person { function calculateAge($dob) { echo “calculateAge called of Person [...]