Subversion-Projekte lars-tiefland.php_share

<?PHP

/**

 * example that show how to use objects as observers without

 * loosing references

 *

 * @package    Event_Dispatcher

 * @subpackage Examples

 * @author     Stephan Schmidt <schst@php.net>

 */

/**

 * load Event_Dispatcher package

 */

require_once 'Event/Dispatcher.php';

/**

 * example sender

 */

class sender

{

    var $_dispatcher = null;

    function sender(&$dispatcher)

    {

        $this->_dispatcher = &$dispatcher;

    }

    function foo()

    {

        $notification = &$this->_dispatcher->post($this, 'onFoo', 'Some Info...');

        echo "notification::foo is {$notification->foo}<br />";

    }

}

/**

 * example observer

 */

class receiver

{

    var $foo;

    function notify(&$notification)

    {

        echo "received notification<br />";

        echo "receiver::foo is {$this->foo}<br />";

        $notification->foo = 'bar';

    }

}

$dispatcher = &Event_Dispatcher::getInstance();

$sender = &new sender($dispatcher);

$receiver = new receiver();

$receiver->foo = 42;

// make sure you are using an ampersand here!

$dispatcher->addObserver(array(&$receiver, 'notify'));

$receiver->foo = 'bar';

echo 'sender->foo()<br />';

$sender->foo();

?>