How to access craft custom variable from PHP

Question

We are using a custom variable initalized like this in our module:

    Event::on(CraftVariable::class, CraftVariable::EVENT_INIT,
        function (Event $event) {
            /** @var CraftVariable $variable */
            $variable = $event->sender;
            $variable->set('myvar', MyVar::class);
        }
    );

The variable can be access from TWIG via

    {{ craft.myvar.WHATEVER }}

But how can I access it from PHP, e.g. from an adjuster or another controller?

Answer 1

Because MyVar is a service, the easiest solution is to just access it the same way you'd access any other service, e.g.:

$whatever = MyModule::getInstance()->myVar->whatever