Aug
10
Yii – Create Page ”; Previous Next Now we are going to create a “Hello world” page in your application. To create a page, we must create an action and a view. Actions are declared in controllers. The end user will receive the execution result of an action. Step 1 − Declare the speak action in the existing SiteController, which is defined in the class file controllers/SiteController.php. <?php namespace appcontrollers; use Yii; use yiifiltersAccessControl; use yiiwebController; use yiifiltersVerbFilter; use appmodelsLoginForm; use appmodelsContactForm; class SiteController extends Controller { /* other code */ public function actionSpeak($message = “default message”) { return $this->render(“speak”,[”message” => $message]); } } ?> We defined the speak action as a method called actionSpeak. In Yii, all action methods are prefixed with the word action. This is how the framework differentiates action methods from non-action ones. If an action ID requires multiple words, then they will be concatenated by dashes. Hence, the action ID add-post corresponds to the action method actionAddPost. In the code given above, the ‘out’ function takes a GET parameter, $message. We also call a method named ‘render’ to render a view file called speak. We pass the message parameter to the view. The rendering result is a complete HTML page. View is a script that generates a response”s content. For the speak action, we create a speak view that prints our message. When the render method is called, it looks for a PHP file names as view/controllerID/vewName.php. Step 2 − Therefore, inside the views/site folder create a file called speak.php with the following code. <?php use yiihelpersHtml; ?> <?php echo Html::encode($message); ?> Note that we HTML-encode the message parameter before printing to avoid XSS attack. Step 3 − Type the following in your web browser http://localhost:8080/index.php?r=site/speak&message=hello%20world. You will see the following window − The ‘r’ parameter in the URL stands for route. The route”s default format is controllerID/actionID. In our case, the route site/speak will be resolved by the SiteController class and the speak action. Print Page Previous Next Advertisements ”;