Can I transfer my music straight from my iphone to my PC?

My itunes library and the library of music that my iphone is synced to is on the computer at my parent's house and I want to transfer all that music to my itunes on my laptop. Is there a way to rip all the music from my iphone directly onto my PC laptop without erasing the music from my iphone? Should I just plug it into the computer with itunes open or do I need some kind of third-party software?

Yes try following this tutorial from YouTube, i don't know if itll work on iPhone. Its worth a try though