PHP code example of ride / lib-event

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

ride / lib-event example snippets

use ride\library\event\loader\io\EventListenerIO;
use ride\library\event\loader\GenericEventLoader;
use ride\library\event\GenericEventManager;
use ride\library\event\Event;

$eventManager = new GenericEventManager();
    
// add some event listeners
$eventManager->addEventListener('event', 'callback'); // provide a name of the event and a callback
$eventManager->addEventListener('event', array('MyClass', 'callback'), 10); // added a weight to influence order
$eventManager->addEventListener('test', 'onEvent');

// trigger an event
$eventManager->triggerEvent('test');
$eventManager->triggerEvent('test', array('var' => 'value'));

// event listener callback
function onEvent(Event $event) {
    echo $event->getName();
    echo $event->getArgument('var');
    
    $event->setPreventDefault(); // stop the listener cascade after this listener
}

// you can lazy load the events through an EventLoader
class YourEventListenerIO implements EventListenerIO {

    public function readEventListeners() {
        return array(
            'event' => array(
                new EventListener('event', 'callback'),
            );
        );
    }

}

$eventListenerIO = new YourEventListenerIO();
$eventLoader = new GenericEventLoader($eventListenerIO);

// all the events will be read at the first trigger, but only initialized when 
// the actual event is triggered
$eventManager->setEventLoader($eventLoader);