$w = new carTyre();
class format
{
function formatDate()
{
$this->something = 0;
echo 'ss';
}
function applyDDS($money)
{
return $money * 1.2;
}
}
$x = format::applyDDS(100);
echo $x;
$y = format::formatDate();
exit;
abstract class machine
{
private $isRaining;
abstract function move();
function todayIsRaining()
{
$this->isRaining = true;
}
}
class automobile extends machine
{
protected $km;
function move()
{
