<?php
use Laminas\EventManager\EventManager;
use Laminas\EventManager\Event;
$eventListener1 = function (Event $event) {
echo 'Call me' . PHP_EOL;
};
$eventListener2 = function (Event $event) {
echo 'Call me too' . PHP_EOL;
};
$eventListener3 = function (Event $event) {
echo 'Call me three' . PHP_EOL;
};
$eventManager = new EventManager();
$eventManager->attach('callme', $eventListener1);
$eventManager->attach('callmetoo', $eventListener2);
$eventManager->attach('callme', $eventListener3);
$eventManager->trigger('callme');