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Step 8 − Create a file called error.php under the views/site directory.
#Rack app error handling request code
The above code defines, that when an error occurs, the error view will be rendered. Step 7 − Modify the actions() method of the SiteController. The above configuration defines that when an error needs to be displayed without the call stack, the site/error action will be executed. configuration adjustments for 'dev' environment 'cookieValidationKey' => 'ymoaYrebZHa8gURuolioHGlK8fLXCKjO', !!! insert a secret key in the following (if it is empty) - this Step 6 − Modify the errorHandler application component in the config/web.php file. You can use dedicated error actions to customize the error display. By default, the error handler shows errors using these views − the view file is used when errors should be displayed with call stack − the view file is used when errors should be displayed without call stack information. When the constant is false, only the error message will be displayed. When the YII_DEBUG constant is true, the error handler will display errors with a detailed call stack. Step 5 − Type the address in the address bar. Throw new NotFoundHttpException("Something unexpected happened") Step 4 − Modify the actionShowError() function. If you want to show the user that his request is invalid, you may throw the yii\web\NotFoundHttpException. Step 3 − Go to the URL You will see a warning message. Step 2 − Add a new function called actionShowError() to the SiteController. The error handler converts all non-fatal PHP errors into catchable exceptions. The above configuration sets the number of source code lines to be displayed to 10. You will be prompted to make a few selections for the project. Step 1 − You can configure it in the following way. First, create a new Angular app named Angular-Interceptor with the CLI by running the following command in your terminal window: npx angular/cli7.0.6 new Angular-Interceptor. The error handler is registered as an application component.
To disable the error handler, you should define the YII_ENABLE_ERROR_HANDLER constant to be false in the entry script. Supports using a controller action to display errors.Displays all errors and exceptions with a detailed call stack.Converts all non-fatal PHP errors into catchable exceptions.The Yii error handler does the following −