<?php

class Fruit {

    private $color;

    public function eat() {
        //chew
    }

    public function setColor($c) {
        $this->color = $c;
    }

}


class Apple extends Fruit {

    public function eat() {
        //chew until core
    }
}

class Orange extends Fruit {

    public function eat() {
        //peel
        //chew
    }

}

?>