Analyzing the Yii error stack trace

When an error occurs, Yii can display the error stack trace along with the error. A stack trace is especially helpful when we need to know what really caused an error rather than just the fact that an error occurred.

Getting ready

1. Set up a fresh Yii application by using yiic webapp as described in the official guide.

2. Configure a database and import the following SQL:

   CREATE TABLE `article` (
     `alias` varchar(255) NOT NULL,
     `title` varchar(255) NOT NULL,
     `text` text NOT NULL,
     PRIMARY KEY (`alias`)
   );

3. Generate an Article model using Gii.

How to do it...

Carry out the following steps:

1. Now we will need to create some code to work with. Create protected/controllers/ErrorController.php as follows:

   <?php
   class ErrorController extends CController
   {
      public function actionIndex()
      {
         $articles = $this->getModels('php');
         foreach($articles as $article)
         {
            echo $article->title;
            echo "<br />";
         }
      }
   
      private...