}
function name($event)
{
echo 'hi ' . $event->data . '<br />';
}
function event()
{
echo 'hello event!<br />';
}
function event2()
{
echo 'hello event2!<br />';
}
$test = new Test2();
$test->on('say', 'hello');
$test->on('say', 'name', 'shuru');
$test->on('say', [$test, 'test']);
$test->on('say', ['Test2', 'test_two']);
$test->trigger('say');
//会触发实例的事件
echo '<hr />';
$test->off('say', 'hello');
$test->trigger('say');
echo '<hr />';
Event::on(Test2::className(), 'say', 'event');
$test->trigger('say');
//因为该对象的类,也绑定了该事件,因此会触发类事件,类事件是在Event.php里面
echo '<hr />';
Event::on(Component::className(), 'say', 'event2');
//父类也绑定了该事件,因此,也会被触发
$test->trigger('say');
