Learn more: Events

• Usage

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The event class lets you register event listeners and trigger them.

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Usage

The register method lets you register an event listener that will run when triggered.

Event::register('foobar', function()
{
	return 'foobar event 1';
});

// You can register multiple handlers for the same event.
// They will be run in the order they were registered.

Event::register('foobar', function()
{
	return 'foobar event 2';
});

The registered method will return TRUE if an event listener has been registered and FALSE if not.

$registered = Event::registered('foobar'); // True

The clear method will clear all event listeners registered for an event.

Event::clear('foobar');

The override method will clear all previously registered handlers for an event before registering a new handler.

Event::override('foobar', function()
{
	return 'foobar event 1';
});

The trigger method run all handlers for the registered event and return an array containing all the return values.

$values = Event::trigger('foobar');

// You can also pass an array of values

$values = Event::trigger('foobar', array(1, 2, 3));

The first method run all handlers for the registered event and return the result of the first one.

$value = Event::first('foobar');

// You can also pass an array of values

$values = Event::first('foobar', array(1, 2, 3));