Is there a way to automatically upload photos from an iPhone to Google Drive With Dropbox, you have the option to upload all photos from your iPhone to Dropbox. Is there an equivalent for Google Drive? I.e. is there an app, that when I open it will upload all my photos from my iPhone to my Google Drive account?

I don't see a preference setting for this in the google drive app, and I have searched for 3rd party apps and nothing seems to do this.
You should use the app Photosync which let you choose where to download your pictures, including Dropbox, Google+/Picasa, Box, 500Px and Google Drive (!) to answer your question.