自己动手创建简单的MVC框架

// create a virtual host>mkdir -p /var/www/layne.com/document_root>cd /etc/apache2/sites-avaliable>pico -w layne.com 或者 随便建一个文件，用gedit打开，save as layne.com<VirtualHost *:8060>        DocumentRoot /var/www/layne.com/document_root        ServerName layne.com</VirtualHost>>a2ensite layne.com>sudo service apache2 reloador>/etc/init.d/apache2 reload

切记：

NameVirtualHost *:8060
Listen 8060

要修改/etc/apache2/ports.conf,加入监听端口，否则无法访问

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

>mkdir -p document_root/images document_root/styles>mkdir -p application/models application/views application/controllers>find>gedit document_root/index.phphello world!>gedit document_root/.htaccessRewriteEngine onRewriteRule !\.(js|gif|jpg|png|css)$ index.php//make sure apache trun on mod_rewrite.

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

//document_root/index.php<?php//import componentrequire_once('../application/models/front.php');require_once('../application/models/icontroller.php');require_once('../application/models/view.php');//import controllerrequire_once('../application/controllers/index.php');//initial front controller$front = FrontController::getInstance();$front->route();echo $front->getBody();die;?>

//application/models/front.php<?php class FrontController{protected $_controller,$_action,$_params,$_body;static $_instance;public static function getInstance(){if(!self::$_instance instanceof self){ self::$_instance = new self();}return self::$_instance;}private function __construct(){try {$request = $_SERVER['REQUEST_URI'];$splits = explode('/',trim($request,'/'));$this->_controller = !empty($splits[0]) ? $splits[0] : 'index';$this->_action = !empty($splits[1]) ? $splits[1] : 'index';if(!empty($splits[2])){$keys = $values = array();for($idx = 2; $idx< count($splits); $idx++){if($idx%2==0){$keys[] = $splits[$idx];}else{$values[] = $splits[$idx];}}$this->_params = array_combine($keys,$values);}} catch (Exception $e) {throw $e->getMessage();return $e->getTrace();}}public function route(){if(class_exists($this->getController())){$rc = new ReflectionClass($this->getController());if($rc->implementsInterface('IController')){if($rc->hasMethod($this->getAction())){$controller = $rc->newInstance();$method = $rc->getMethod($this->getAction());$method->invoke($controller);}else{throw new Exception('Action');}}else{throw new Exception('Interface');}}else{throw new Exception('Controller');}}public function getController(){return $this->_controller;}public function getParams(){return $this->_params;}public function getAction(){return $this->_action;}public function getBody(){return $this->_body;}public function setBody($body){$this->_body = $body;}}?>

//application/models/icontroller.php<?phpinterface IController{}?>

//application/models/view.php<?phpclass View extends ArrayObject{public function __construct(){parent::__construct(array(),ArrayObject::ARRAY_AS_PROPS);}public function render($file){ob_start();include(dirname(__FILE__). '/' . $file);return ob_get_clean();}}?>

//application/controllers/index.php<?phpclass index implements IController{public function __construct(){}public function index(){$fc = FrontController::getInstance();$params = $fc->getParams();$view = new View();$view->name = $params['name'];$result = $view->render('../views/index.php');$fc->setBody($result);}}?>

//application/views/index.phpHello, <?php echo $this->name;?>!

output buffering

点击打开链接http://web.archive.org/web/20101216035343/http://dev-tips.com/featured/output-buffering-for-web-developers-a-beginners-guide

ArrayObject

点击打开链接http://www.php.net/manual/zh/class.arrayobject.php

这里的ArrayObject只是用来存放要set到view中去的对象，当然这些对象你也可以用自定义的容器来存放，比如一个自定义的对象数组。

cakephp里用的是一个单例模式的ClassRegistry的__objects数组来存放的。

function addObject($key, &$object) {$_this =& ClassRegistry::getInstance();$key = Inflector::underscore($key);if (!isset($_this->__objects[$key])) {$_this->__objects[$key] =& $object;return true;}return false;}