OOP Best Practices - How to validate + update multiple properties

[EricIsGood]

I have a very large profile object (userName, Icon, favoriteFood etc...)

On an update profile page, the user can change none, some, or all of these at the same time...

Does anyone have a best practice idea of what this should look like?

I can think of several ways to do this:
1. update the users main profile object with one change at a time
(many sql updates)

2. have 2 profile objects:
   $profileCurrent = dataFromDB
   $profileUpdates = htmlFormChanges

Then some methods:
validateAllFields($profileUpdates)
commitAllChanges($profileUpdates)

Neither way seems completely ideal, though the 2nd does seem a bit better... any ideas?

--

In case the above isn't clear.... I'm basically asking what is the best way to update many properties of the same object at the same time.

Thanks,

-Eric

[Weedpacket]

Several public methods for updating the properties of the object (each with validation); one method to commit that to the database.

The object could have additional private properties that indicate which database properties need to be committed (i.e., that have changed since the previous commit/load).