private function startPlane()
{
$this->engineTemp = 210;
}
private function fly()
{
// Fly
}
}
// Car uses same engine tools for temperature conversion
class Car
{
use EngineTools;
private $engineTemp;
function __construct()
{
$this->startCar();
}
private function startCar()
{
$this->engineTemp = 230;
}
private function drive()
{
// Drive
}
}
$plane = new Plane();
$car = new Car();
echo $plane->currentTempC() . "<br/>";
echo $car->currentTempC() . "<br/>";
