Get user's email
 

Hello
I'm designing a php page contains 3 text boxes: (Username, Password and Email).
When a user enters his username and password correctly, output his email in Email text box.
I know I have to use global.php but I don't know how to use
Please anyone give me a clue.

Thanks

If all you want to do is get the Email and nothing else, you could just fetch it directly from the database. Otherwise you can make them login (through vBulletin) and just output the email through the $vbulletin->userinfo['email'] variable.