tkouleris

<?php
/*
* Proxy Pattern Example
* --------------------------
*
* Wiki: A proxy, in its most general form, is a class functioning as an interface 
* to something else. The proxy could interface to * anything: a network connection, 
* a large object in memory, a file, or some other resource that is expensive or impossible 
* to duplicate. In short, a proxy is a wrapper or agent object that is being called by the 
* client to access the real serving object behind the scenes. Use of the proxy can simply be 

tkouleris

<?php
abstract class Beverage{
    /* Hook methods */
    public abstract function boilWater();
    public abstract function brew();
    public abstract function serve();
    public abstract function addSupplements();
    
    /* The template method */

tkouleris

<?php
/*
* Singleton Pattern Example
* --------------------------
*
* Wiki: In software engineering, the singleton pattern is 
* a design pattern that restricts the instantiation of a 
* class to one * object. This is useful when exactly one object
* is needed to coordinate actions across the system. 
*