Fragment caching provides caching of a fragment of a web page. Step1 − Add a new function called actionFragmentCaching() to the SiteController. public function actionFragmentCaching() { $user = new MyUser(); $user->name = "cached…
Caching is an effective way to improve the performance of your application. Caching mechanisms store static data in cache and get it from cache when requested. On the server side,…
When we write a PHP class, we debug it step by step or use die or echo statements to verify how it works. If we develop a web application, we…
By overriding fields() and extraFields() methods, you can define what data can be put into a response. The difference between these two methods is that the former defines the default set of…
The controller class extends from the yii\rest\ActiveController class, which implements common RESTful actions. We specify the $modelClass property so that the controller knows which model to use for manipulating data. Step 1 − Create a…
Yii provides the following useful features for implementing RESTful APIs − Quick prototypingCustomizable object serializationResponse format (supporting JSON and XML by default)Formatting of collection data and validation errorsEfficient routingSupport for…
Theming helps you replace a set of views with another one without the need of modifying original view files. You should set the theme property of the view application component to use…
During the developing of a database-driven application, the database structure evolves with the source code. Yii provides the database migration feature that allows you to keep track of database changes. Yii provides…
Active Record provides an object-oriented API for accessing data. An Active Record class is associated with a database table. Yii provides the Active Record support for the following relational databases…
Query builder allows you to create SQL queries in a programmatic way. Query builder helps you write more readable SQL-related code. To use query builder, you should follow these steps…