Can't sync itunes to my iphone?

I just spent 2 days downloading hundreds of songs to itunes. My itunes recognizes my iphone when it's plugged in and when I click on 'sync' there's even a message on my phone that says syncing iphone. In the end however there are no songs that appear and nothing gets transferred.

What kind of phone do you have? Anyways, it might just be a bug or glitch in the operating system. Try restarting both your phone and itunes (restart computer) and see if that works. Another way is try re-downloading iTunes. Last way would be to restore your iPhone then try it then. If nothing works, you're going to have to contact Apple and get it fixed.