public function ContainerAwareEventDispatcher::addListener in Zircon Profile 8.0
Same name and namespace in other branches
- 8 core/lib/Drupal/Component/EventDispatcher/ContainerAwareEventDispatcher.php \Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher::addListener()
Adds an event listener that listens on the specified events.
Parameters
string $eventName The event to listen on:
callable $listener The listener:
int $priority The higher this value, the earlier an event: listener will be triggered in the chain (defaults to 0)
Overrides EventDispatcherInterface::addListener
1 call to ContainerAwareEventDispatcher::addListener()
- ContainerAwareEventDispatcher::addSubscriber in core/
lib/ Drupal/ Component/ EventDispatcher/ ContainerAwareEventDispatcher.php - Adds an event subscriber.
File
- core/
lib/ Drupal/ Component/ EventDispatcher/ ContainerAwareEventDispatcher.php, line 174 - Contains \Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher.
Class
- ContainerAwareEventDispatcher
- A performance optimized container aware event dispatcher.
Namespace
Drupal\Component\EventDispatcherCode
public function addListener($event_name, $listener, $priority = 0) {
$this->listeners[$event_name][$priority][] = [
'callable' => $listener,
];
$this->unsorted[$event_name] = TRUE;
}