Totorial 2: implementing an inheritance

  
Here,we created a class:Car,which will be inheritance by Mini-Van ,Motor and Race-Car. In Class:Car,which contains a total Number of Car from inventory System. Since Mini-Van ,Motor and Race-Carinheritance class:Car,they are also contain a total Number of Car automatically.

Saved as Car.php

<?php

class Car{

private $_totalNumber=100;

function getTotalNumber(){

return $this->_totalNumber;

}

function setTotalNumber($totalNumber){

$this->_totalNumber=$totalNumber;

}

function printTotalNumber(){

print "$this->_totalNumber";

}

}

?>

Saved As InheritanceCar.php

<?php

require_once("car.php");

class miniVan extends Car{}

class motor extends Car{}

class raceCar extends Car{}

$objMiniVan =new miniVan();

$objMiniVan->printTotalNumber();

$objMotor=new motor();

$objMotor->printTotalNumber();

$objRaceCar=new raceCar();

$objRaceCar->printTotalNumber();

?>

Output:

100100100

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