Which folder to add custom helper functions to in Yii

yii2

Solution

You can put it in the components folder. Afterwards use the namespace to access it. For example

use app\components\Helper;

and in your code

Helper::something();

Make the helper functions static functions.

Problem

I am trying to create a helper function in Yii 2. To which folder is the PHP file to be added to create a custom helper function in Yii 2 and how do I use it in controllers?

Original source