Using inheritance to efficiently represent various vehicle types : Inheritance « Class « PHP






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  3. Inheritance

Using inheritance to efficiently represent various vehicle types

 
<?
class Vehicle {
     var $model;
     var $current_speed;

     function setSpeed($mph) {
          $this->current_speed = $mph;
     }

     function getSpeed() {
          return $this->current_speed;
     }
}

class Auto extends Vehicle {
    var $fuel_type;

    function setFuelType($fuel) {
          $this->fuel_type = $fuel;
    }

     function getFuelType() {
          return $this->fuel_type;
     }

}

class Airplane extends Vehicle {
     var $wingspan;

     function setWingSpan($wingspan) {
          $this->wingspan = $wingspan;
     }

     function getWingSpan() {
          return $this->wingspan;
     }
}
?>








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