<?php namespace sf\base; /** * Controller is the base class for classes containing controller logic. * @author Harry Sun <[email protected]> */ class Controller { }
只有一個空類,等待添加內容。 再來看web中的
<?php namespace sf\web; /** * Controller is the base class for classes containing controller logic. * @author Harry Sun <[email protected]> */ 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量導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。
<?php namespace 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.Bkjia.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
<?php namespace sf\base; /** * Controller is the base class for classes containing controller logic. * @author Harry Sun <[email protected]> */ 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:
<?php namespace sf\web; /** * Application is the base class for all application classes. * @author Harry Sun <[email protected]> */ 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字符串就好了,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); }