(3.0.7 - 3.0.18 only, PHP 4 >= 4.0.0)
wddx_add_vars -- Add variables to a WDDX packet with the specified IDwddx_add_vars() is used to serialize passed variables and add the result to the packet specified by the packet_id. The variables to be serialized are specified in exactly the same way as wddx_serialize_vars().