PHP MVC模式在网站架构中的实现分析

＜?php 
require_once('lib/DataAccess.php'); 
require_once('lib/ProductModel.php'); 
require_once('lib/ProductView.php'); 
require_once('lib/ProductController.php'); 

$dao=& new DataAccess ('localhost','user','pass','dbname'); 
$productModel=& new ProductModel($dao); 
$productController=& new ProductController($productModel,$_GET); 
echo $productController-＞display(); 
?＞

$this->{$_GET['method']}($_GET['param']);

"index.php?class=ProductView&method=productItem&id=4"

$view=new $_GET['class']; 
$view->{$_GET['method']($_GET['id']);