Forget about the philandering and the lying -- none of that matters anymore ... because Tiger Woods is #1 again!!!

Woods took home the title at the Arnold Palmer Invitational today, which officially makes him the top ranked golfer in the world. He has not held that title since October, 2010 ... just a month before he ... well, you remember.

Nike would have you think reclaiming his throne erases the last few years, having posted the new ad on its Facebook page.

So we gotta ask ...