<?phpnamespace sf\base;/** * Controller is the base class for classes containing controller logic. * @author Harry Sun <sunguangjun@126.com> */class Controller{} 只有一個空類，等待新增內容。 再來看web中的
<?phpnamespace sf\web;/** * Controller is the base class for classes containing controller logic. * @author Harry Sun <sunguangjun@126.com> */class Controller extends \sf\base\Controller{ /** * Renders a view * @param string $view the view name. * @param array $params the parameters (name-value pairs) that should be made available in the view. */ public function render($view, $params = []) { extract($params); return require '../views/' . $view . '.php'; }} 可以看到，我們首先從數組中把變數匯入到當前的符號表中，然後引入相應的view頁面。 然後，在SiteController，我們只需要這麼寫就可以了。
<?phpnamespace app\controllers;use sf\web\Controller;class SiteController extends Controller{ public function actionTest() { echo 'success!'; } public function actionView() { $this->render('site/view', ['body' => 'Test body information']); }} 然後，訪問www.2cto.com，就可以看到跟之前一樣的頁面了。 我們來完善一下base中的Controller
<?phpnamespace sf\base;/** * Controller is the base class for classes containing controller logic. * @author Harry Sun <sunguangjun@126.com> */class Controller{ /** * @var string the ID of this controller. */ public $id; /** * @var Action the action that is currently being executed. */ public $action;} 添加了兩個屬性，分別來記錄當前的controller和action。 然後，我們要在解析router之後，將其賦值，code如下：
<?phpnamespace sf\web;/** * Application is the base class for all application classes. * @author Harry Sun <sunguangjun@126.com> */class Application extends \sf\base\Application{ /** * Handles the specified request. * @return Response the resulting response */ public function handleRequest() { $router = $_GET['r']; list($controllerName, $actionName) = explode('/', $router); $ucController = ucfirst($controllerName); $controllerNameAll = $this->controllerNamespace . '\\' . $ucController . 'Controller'; $controller = new $controllerNameAll(); $controller->id = $controllerName; $controller->action = $actionName; return call_user_func([$controller, 'action'. ucfirst($actionName)]); }} 然後我們就可以在controller和view中拿到相應的controller名字和action名字了，將view.php修改如下：
<html> <head> <title>title</title> <head> <body> <?php echo $this->id;?><br/> <?php echo $this->action;?><br/> <?php echo $body;?> </body></html>然後我們就可以看到如下的頁面了 有人覺得現在大家都前後端分離了，我們不需要用PHP去render一個頁面，只需要返回一個josn字串就好了，這個就更簡單了，在web的Controller中添加一個toJson方法即可
/** * Convert a array to json string * @param string $data */ public function toJson($data) { if (is_string($data)) { return $data; } return json_encode($data); } 將SiteController中的actionTest，修改如下： public function actionTest() { $data = ['first' => 'awesome-php-zh_CN', 'second' => 'simple-framework']; echo $this->toJson($data); }
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