subscribeEvent

$session->subscribeEvent( $object, $event )

The subscribeEvent() function subscribes to a specific event without using wildcard pattern matching, unlike subscribeAll().

The function unsubscribeEvent() cancels subscriptions that were established by using subscribeEvent(). The section “unsubscribeEvent” on page 106 provides additional information.

 $session->subscribeEvent( "Router::gateway39", "Down" );