Minor [PHP framework] 5. Events, minorphp framework events

Minor [PHP framework] 5. Events, minorphp framework events

5.1 Event

Minor'sEventClass provides a simple observer implementation that allows you to subscribe to and listen to events in the application.

　　5.1.1 subscribe to events

First, create an event class:

<?phpnamespace App\Event;use Minor\Event\Event;class DemoEvent extends Event{    private $name;    public function __construct($name)    {        $this->name = $name;    }    public function setName($name)    {        $this->name = $name;    }    public function getName()    {        return $this->name;    }}

Then register the event in the configuration file:

<?phpreturn $events = [    'App\Event\DemoEvent'    =>    [        'App\Listener\DemoListener' => 'handle',    ],];

　　5.1.2 trigger event

Minor provides an Event management class: Minor \ event \ EventManger. by calling the static method fire: EventManager: fire ($ Event) of this class, this event can be triggered. For example:

class FooController extends Controller{    public function bar($productName)    {        $event = new DemoEvent('DemoEvent');        EventManager::fire($event);        ...    }}

 

5.2 listener

After an event is triggered, the event manager EventManager triggers the listener through the configuration file. In the 5.1.1 configuration file, we configured the DemoEvent Listener as App \ Listener \ DemoListener's handle method. You can see the implementation of this class:

<?phpnamespace App\Listener;use App\Event\DemoEvent;use Minor\Event\Listener;class DemoListener extends Listener{    public function handle(DemoEvent $event)    {        echo '[DemoListener] handle the event:[' . $event->getName() .'] success!<br/><br/>';    }}