How to connect my iPhone to my iPad?

Is there a cable I can get to connect the two?

Added (1). I want to transfer my iTunes to my iPad and add my photos from my phone.

I'm fairly sure that you can't do this. But why exactly would you want to? If you need to transfer files use Dropbox (or just email them to yourself).

You can't connect the two devices directly. You have to use iTunes and sync your itunes library to ech device.

Have you ever heard of Personal Hotspot? You can connect iPhone to iPad via Personal Hotspot. I have learnt this from the following article.
How to Connect iPhone to iPad Wirelessly: http://iphone-to-computer.com/howto/connect-iphone-ipad-wirelessly/