tkouleris

<?php
class IntegerRange implements Iterator{
	private $start;
	private $end;
	private $current;
	public function __construct($start, $end){
			$this->start  = $start;
			$this->end = $end;
			$this->current = $start;
	}

tkouleris

<?php

abstract class SongComposite{
	public function songInfo(){}
}
class Song extends SongComposite{
	private $songTitle;
	private $songBand;
	public function __construct($sTitle, $sBand){
		$this->songTitle = $sTitle;

tkouleris

<?php
/*
Observer Design Pattern - Weather Station Example

*/
abstract class Observer{
	public function update(){}
}

abstract  class Subject{