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Interface EventManagerInterface

Namespace: Cake\Event

dispatch() public

Dispatches a new event to all configured listeners
listeners() public

Returns a list of all listeners for an eventKey in the order they should be called
off() public

Remove a listener from the active listeners.
on() public

Adds a new listener to an event.

dispatch(mixed $event)

Dispatches a new event to all configured listeners

string|\Cake\Event\EventInterface $event: The event key name or instance of EventInterface.

\Cake\Event\EventInterface

listeners(string $eventKey)

Returns a list of all listeners for an eventKey in the order they should be called

array

off(mixed $eventKey, mixed $callable)

Remove a listener from the active listeners.

Remove a EventListenerInterface entirely:

$manager->off($listener);

Remove all listeners for a given event:

$manager->off('My.event');

Remove a specific listener:

$manager->off('My.event', $callback);

Remove a callback from all events:

$manager->off($callback);

string|\Cake\Event\EventListenerInterface|callable $eventKey: The event unique identifier name with which the callback has been associated, or the $listener you want to remove.
\Cake\Event\EventListenerInterface|callable|null $callable optional: The callback you want to detach.

$this

on(mixed $eventKey, mixed $options, ?callable $callable)

Adds a new listener to an event.

A variadic interface to add listeners that emulates jQuery.on().

Binding an EventListenerInterface:

$eventManager->on($listener);

Binding with no options:

$eventManager->on('Model.beforeSave', $callable);

Binding with options:

$eventManager->on('Model.beforeSave', ['priority' => 90], $callable);

string|\Cake\Event\EventListenerInterface $eventKey: The event unique identifier name with which the callback will be associated. If $eventKey is an instance of Cake\Event\EventListenerInterface its events will be bound using the implementedEvents methods.
array|callable $options optional: Either an array of options or the callable you wish to bind to $eventKey. If an array of options, the priority key can be used to define the order. Priorities are treated as queues. Lower values are called before higher ones, and multiple attachments added to the same priority queue will be treated in the order of insertion.
callable|null $callable optional: The callable function you want invoked.

$this

InvalidArgumentException
When event key is missing or callable is not an instance of Cake\Event\EventListenerInterface.

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https://api.cakephp.org/4.1/interface-Cake.Event.EventManagerInterface.html