60 lines
1.1 KiB
PHP
60 lines
1.1 KiB
PHP
<?PHP
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/**
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* example that shows how to cancel an event
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*
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* @package Event_Dispatcher
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* @subpackage Examples
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* @author Stephan Schmidt <schst@php.net>
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*/
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/**
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* load Event_Dispatcher package
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*/
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require_once 'Event/Dispatcher.php';
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/**
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* example sender
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*/
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class sender
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{
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var $_dispatcher = null;
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function sender(&$dispatcher)
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{
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$this->_dispatcher = &$dispatcher;
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}
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function foo()
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{
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$this->_dispatcher->post($this, 'onFoo', 'Some Info...');
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}
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}
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/**
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* example observer
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*/
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function receiver1(&$notification)
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{
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echo "receiver 1 received notification<br />\n";
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// the notification will be cancelled and no other observers
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// will be notified
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$notification->cancelNotification();
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}
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/**
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* example observer
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*/
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function receiver2(&$notification)
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{
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echo "receiver 2 received notification<br />\n";
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}
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$dispatcher = &Event_Dispatcher::getInstance();
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$sender = &new sender($dispatcher);
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$dispatcher->addObserver('receiver1', 'onFoo');
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$dispatcher->addObserver('receiver2', 'onFoo');
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$sender->foo();
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?>
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