I've been using my iPhone on my Mac, but my Mac's busted. Can I use it with the iTunes on my PC?

I had a MacBook pro which has had problems. Luckily I have a new PC with iTunes on it.

What happens when I connect my iPhone to the PC and try and Sync music or update the software? Will it work?

Which iPhone? Which Windows version?

EXAMPLE:
iPhone 5s needs Windows 7 or later, iTunes 12.3 or later.

If you have the right Windows and iTunes for your iPhone, connecting will allow syncing and updating the iPhone.