Following best practices

In this recipe, you will see how to configure Yii2 for the best performance and some additional principles of building responsive applications. These principles are both general and Yii-related. Therefore, we will be able to apply some of these even without using Yii2.

Getting ready

Create a new yii2-app-basic application using the Composer package manager, as described in the official guide at http://www.yiiframework.com/doc-2.0/guidestart-installation.html.

How to do it…

1. Update your PHP to the latest stable version. Major releases of PHP may bring significant performance improvements. Turn off the debug mode and set the prod environment. This can be done by editing web/index.php as follows:

   defined('YII_DEBUG') or define('YII_DEBUG', false);
   defined('YII_ENV') or define('YII_ENV', 'prod');

   Note

   Note: In the yii2-app-advanced application skeleton, you can use the shell command php init and opt production environment for loading optimized index.php and configuration files...