documentation/_observer_example_8php_source.html

 <?php
 namespace Magento\Framework\Event\Test\Unit\Invoker;

 use Magento\Framework\Event\Observer;
 use Magento\Framework\Event\ObserverInterface;

 class ObserverExample implements ObserverInterface
 {
     public function execute(Observer $observer)
     {
         //do nothing
     }
 }
Magento\Framework\Event\ObserverInterface
Definition: ObserverInterface.php:16

Magento\Framework\Event\Test\Unit\Invoker
Definition: InvokerDefaultTest.php:6

Magento\Framework\Event\Test\Unit\Invoker\ObserverExample
Definition: ObserverExample.php:11

Magento\Framework\Event\Test\Unit\Invoker\ObserverExample\execute
execute(Observer $observer)
Definition: ObserverExample.php:17

$observer
$observer
Definition: second_website_with_second_currency.php:38

Magento\Framework\Event\Observer
Definition: Collection.php:12

Magento\Framework\Event\Observer
Definition: Observer.php:14