$session->propertySubscribeAll( $flags,$class_pattern, $instance_pattern, $property_pattern, $interval);
The propertySubscribeAll() function subscribes to changes in all the matching properties in the matching objects.
The meaning of the $flags is described for the subscribe() session function.
The actions of this call are reversed by propertyUnsubscribeAll(). The section “propertyUnsubscribeAll” on page 102 provides additional information.
$session->propertySubscribeAll( 0, "Router", "gw1", ".*", 30 );