Package supplies support of event handling on different kind of objects. To use this you just inherite your class from Phasty\Events\Eventable or use Phasty\Events\EventableTrait trait within you class:
class SomeCoolClass extends Phasty\Events\Eventable {
}
$obj = new SomeCoolClass;
$obj->on("hello-event", function($event) {
echo $event->getData();
});
$obj->trigger("hello-event", "Hello world");
Output:
Hellow world!
And more:
class Button extends Phasty\Events\Eventable {
public function __construct() {
$this->on("click", "sayHello");
$this->on("click", "sayGoodbye");
}
protected function sayHello() {
echo "Hello!\n";
}
protected function sayGoodbye() {
echo "Bye!\n";
}
public function click() {
$this->trigger("before-click");
$this->trigger("click");
}
}
$btn = new Button;
$btn->on("before-click", function () {
echo "Before click handler\n";
});
$btn->click();
$btn->off("click", "sayHello");
$btn->click();
Output:
Before click handler
Hello!
Bye!
Before click handler
Bye!
// Listen to some-event
$obj->on("some-event", /* Any PHP callback or method name of $obj class */);
// Listen to any event
$obj->on(null, /* Any PHP callback or method name of $obj class */);
// Forget all events callbacks
$obj->off();
// Forget all callbacks of "some-event" event
$obj->off("some-event");
// Forget exact callback for "some-event"
$obj->off("some-event", /* Any PHP callback or method name of $obj class */);