Recently, I noticed that when storing the resulting identity in my database, Google would sometimes return a different identity for the same user, resulting in two database entries for a single user.
After a little research, I figured out that Google uses $openid->realm along with the username to create the identity. And by default the realm becomes the URL of your website. Using LightOpenID, what should I set $openid->realm to for the resulting Google identities to remain consistent, so that I can store them in my database? Can I just set 'realm' to whatever I like? Or does it have to relate to my URL?