I use OAuth to authenticate at an external website. Everything is okay but the session variable misses after redirecting from external websites.
Summary: I store a session var in my website then go to login page of other website. After logging in and confirming, it redirects to my callback, when I check the previous session var, it misses! How to fix it?
I tried to call session_start() everywhere I use session but it doesn't work. Of course I enabled session in "php.ini" and enabled cookie in browser. :) I debugged but can't find the reason out.
Update: After storing my session var, I do a request like this: http://mixi.jp/connect_authorize.pl?oauth_callback=http%3A%2F%2Fmypage.com%2Fcallback.php&oauth_token=fjdklsfjlksd
Note the oauth_callback, it is the redirect URL. I don't know what mixi.jp use to redirect.