--TEST-- Lazy objects: ReflectionClass::initializeLazyObject() --FILE-- isUninitializedLazyObject($obj)); var_dump($reflector?->initializeLazyObject($obj)); printf("Initialized:\n"); var_dump(!$reflector->isUninitializedLazyObject($obj)); } $reflector = new ReflectionClass(C::class); $obj = $reflector->newLazyGhost(function ($obj) { var_dump("initializer"); $obj->a = 1; }); test('Ghost', $obj); $obj = $reflector->newLazyProxy(function ($obj) { var_dump("initializer"); $c = new C(); $c->a = 1; return $c; }); test('Proxy', $obj); --EXPECTF-- # Ghost: Initialized: bool(false) string(11) "initializer" object(C)#%d (1) { ["a"]=> int(1) } Initialized: bool(true) # Proxy: Initialized: bool(false) string(11) "initializer" object(C)#%d (1) { ["a"]=> int(1) } Initialized: bool(true)