reaneyk

<?php

//Define a new Interface for all 'shapes' to inherit
interface Shape {

  //Define the methods required for classes to implement
  public function getColor();

  public function setColor($color);    

reaneyk

<?php

//Define a new Abstract class for all 'shapes' to extend
abstract class Shape {

    //Define the methods required for classes to extend
    //the abstract class
    abstract protected function getColor();

    abstract protected function setColor($color);