50 lines
1.1 KiB
PHP
50 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 observers
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*/
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function receiver1(&$notification)
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{
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echo "receiver 1 received notification<br />\n";
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}
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function receiver2(&$notification)
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{
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echo "receiver 2 received notification<br />\n";
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}
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$dispatcher = &Event_Dispatcher::getInstance();
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$dispatcher->addObserver('receiver1', 'onFoo', 'TestClass');
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$dispatcher->addObserver('receiver2', 'onFoo', 'AnotherTestClass');
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$dispatcher->addObserver('receiver2', 'onBar');
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// Test, whether an observer has been registered
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$registered = $dispatcher->observerRegistered('receiver1', 'onFoo');
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if ($registered === true) {
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echo "Observer successfully registered";
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}
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$observers = $dispatcher->getObservers('onFoo');
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echo '<pre>';
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print_r($observers);
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echo '</pre>';
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// Filter using a class name
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$observers = $dispatcher->getObservers('onFoo', 'TestClass');
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echo '<pre>';
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print_r($observers);
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echo '</pre>';
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?>
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