function ContainerAwareEventDispatcher::hasListeners
Same name in other branches
- 8.9.x core/lib/Drupal/Component/EventDispatcher/ContainerAwareEventDispatcher.php \Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher::hasListeners()
- 10 core/lib/Drupal/Component/EventDispatcher/ContainerAwareEventDispatcher.php \Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher::hasListeners()
- 11.x core/lib/Drupal/Component/EventDispatcher/ContainerAwareEventDispatcher.php \Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher::hasListeners()
File
-
core/
lib/ Drupal/ Component/ EventDispatcher/ ContainerAwareEventDispatcher.php, line 228
Class
- ContainerAwareEventDispatcher
- A performance optimized container aware event dispatcher.
Namespace
Drupal\Component\EventDispatcherCode
public function hasListeners($event_name = NULL) : bool {
if ($event_name !== NULL) {
return !empty($this->listeners[$event_name]);
}
foreach ($this->listeners as $event_listeners) {
if ($event_listeners) {
return TRUE;
}
}
return FALSE;
}
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