(PECL gupnp >= 0.1.0)
gupnp_service_proxy_action_get — Send action to the service and get value
$proxy
   , string $action
   , string $name
   , int $type
   )Send action with parameters to the service exposed by proxy synchronously and get value.
proxy
     A service proxy identifier.
action
     An action.
name
     The action name.
type
     The type of the variable to retrieve. Type can be one of the following values:
GUPNP_TYPE_BOOLEAN
         GUPNP_TYPE_INT
         GUPNP_TYPE_LONG
         GUPNP_TYPE_DOUBLE
         GUPNP_TYPE_FLOAT
         GUPNP_TYPE_STRING
         Return value of the action.
Issues E_WARNING with either not correctly defined type of the action or unable to send action.