how to obtain the facebook uid of a user in php
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by Eric
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Published on 2010-04-21T17:07:49Z
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Hey, I'm writing a canvas app for facebook. I use the command:
$user_id = $facebook->require_login();
To get the userid, but at the first few pages of my app I don't want to require login, but if the user's logged in, I'd like to know what the userid is. Basically I need a "get_login()" command that perhaps returns 0 or null if the user is not logged in. Is there anything like that?
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