--TEST-- Lazy objects: json_encode initializes object --FILE-- a = 1; } } $reflector = new ReflectionClass(C::class); print "# Ghost:\n"; $obj = $reflector->newLazyGhost(function ($obj) { var_dump("initializer"); $obj->__construct(); }); var_dump(json_encode($obj)); print "# Proxy:\n"; $obj = $reflector->newLazyProxy(function ($obj) { var_dump("initializer"); return new C(); }); var_dump(json_encode($obj)); --EXPECTF-- # Ghost: string(11) "initializer" string(14) "C::__construct" string(7) "{"a":1}" # Proxy: string(11) "initializer" string(14) "C::__construct" string(7) "{"a":1}"