Warning: wddx_serialize_vars(): recursion detected in %s on line %d
string(78) "<wddxPacket version='1.0'><header/><data><struct></struct></data></wddxPacket>"
string(120) "<wddxPacket version='1.0'><header/><data><struct><var name='foo'><string>bar</string></var></struct></data></wddxPacket>"