Passing configuration from PHP to JavaScript

You can store application parameters in your configuration file protected/config/main.php that we can access using Yii::app()->params['paramName']. When your application uses the JavaScript code, it is handy to have these parameters available for it. Let's see how to do it in a simple and effective way.

Getting ready

1. Set up a fresh application using the yiic webapp tool. It should generate an application parameters array in protected/config/main.php:

   'params'=>array(
      // this is used in contact page
      'adminEmail'=>'[e-mail]',
   ),

2. Add additional parameters as follows:

   'params'=>array(
      // this is used in contact page
      'adminEmail'=>'[e-mail]',
      'alert' => array(
         'enabled' => true,
         'message' => 'Hello there!',
      ),
   ),

How to do it...

1. Create a controller named protected/controllers/AlertController.php as follows:

   <?php
   class AlertController extends Controller
   {
     function actionIndex...