Objects in php

February 17, 2013
Posted by admin 2:59 PM

Object is  an concrete entity constructed using the blueprint provided by  class. The class specifies the behaviors and characteristic of   object but it doesn’t specify the value of those characteristics. With a single class we can make several instances of the same class .In OOP we can make object  from class by instantiation.  For creating a new object we use the word new to instantiate a class
e.g.
<?php
class classname
{
public  variable name;                                                                                            //property of class
public  function  function_name(parameter,parameter2…parameter_n)     //method of class
   {
   }
}
$object_name=new class_name;
$object_name->function_name();                                                                           //calling the function from object
?>

In PHP we can called a method from object by using arrow(->).We can make multiple objects from same class using the keyword new.  
 

Classes in php

February 17, 2013
Posted by admin 2:49 PM

A class is a unit of code which contains variables and functions that describes the behavior and characteristic of all the members of a set. Normally it just a piece of code in our code that consist of methods and properties which describe the class behaviors and its characteristics

e.g. A class bike have its weight, color and speed, so the  weight and color are the variables  for this class and the speed is function for this class cause it depends on the fuel and other parameters  .A class bike can describe the behaviors   and characteristics of bike so  all the bike is member of this class.

In object-oriented programming the characteristics are the properties of the class and its behavior is known as the method of the class. The method is same as the functions in our normal programming works on parameters pass to them

e.g.

<?php

class classname

{

public  variable name;                                                                                           //property of class

public  function  function_name(parameter,parameter2…parametern)     //method of class

   {

   }

}

?>