Today i was reading design pattern and i tried to make a sample program which consist of a interface, two class which implement that interface and a main index class.let have a look at the code given below. firstly the interface Iproduct
<?php
interface Iproduct
{
//Define the abstract method
public function apple();
public function mango();
}
the two class which implement the interface
<?php
// Including the interface
include_once 'Iproduct.php';
class Apple implements Iproduct
{
public function apple()
{
echo ("We sell apples!");
}
public function mango()
{
echo ("We do not sell Mango!");
}
}
<?php
// Include the interface Iprodduct
include_once 'Iproduct.php';
class Mango implements Iproduct
{
public function apple()
{
echo ("We do not sell Apple");
}
public function mango()
{
echo ("We sell mango!");
}
}
now the main class
<?php
include_once ('apple.php');
include_once ('Mango.php');
class UserProduct
{
public function __construct()
{
$apple_class_obj=new Apple();
$mango_class_obj=new Mango();
//echo("<br/> the apple class object: ".$apple_class_obj);
}
}
//creating the object of the UserProduct
echo ("creating the object!<br/>");
$userproduct_obj=new UserProduct();
?>
the output which i get when i execute the code is:
creating the object!
we sell apples!we sell mango
now the problem is that i am unable to get that how is the second output ie, we sell apple! and we sell mango! is being displayed.please let me know the reason
