<?php

class Dispatcher
{
    // dispatch request to the appropriate controller/method
    public static function dispatch()
    {
    	$url = explode('/', trim($_SERVER['REQUEST_URI'], '/'));
    	array_shift($url);
        // get controller name
        $controller = !empty($url[0]) ? $url[0] . 'Controller' : 'DefaultController';
        // get method name of controller
        $method = !empty($url[1]) ? $url[1] : 'index';
        // get argument passed in to the method
        $arg = !empty($url[2]) ? $url[2] : NULL;
        // create controller instance and call the specified method
		$cont = new $controller;
        $cont->$method($arg);
    }
}// End Dispatcher class