677 B
677 B
EventDispatcher Component
EventDispatcher implements a lightweight version of the Observer design pattern.
use Symfony\Component\EventDispatcher\EventDispatcher;
use Symfony\Component\EventDispatcher\Event;
$dispatcher = new EventDispatcher();
$dispatcher->addListener('event_name', function (Event $event) {
// ...
});
$dispatcher->dispatch('event_name');
Resources
You can run the unit tests with the following command:
phpunit
If you also want to run the unit tests that depend on other Symfony Components, install dev dependencies before running PHPUnit:
php composer.phar install --dev