(PECL gupnp >= 0.1.0)
gupnp_service_action_get — Retrieves the specified action arguments
Retrieves the specified action arguments.
action
     A service action identifier.
name
     The name of the variable to retrieve.
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
         The value of the variable.
Issues E_WARNING with not correctly defined type of the variable.