如何在新的Facebook Oauth Api中获取访问令牌？

Question

I am using the new facebook oauth api. The one for php 4. I am trying application where user can login with there facebook account. Since I am using laravel 4 for my project I am using this package. In this package there is a line $session = new FacebookSession('access-token-here'); But from where will I get the access token? In the previous version of the api there was a function called getAccessToken(). I am really confused. Thanks in advance.

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Answer 1

Using the Facebook PHP SDK (v4.0.x), you need to save the $session after the user has logged in, e.g.:

$_SESSION['fb_token'] = $session->getToken();

Then, when the user returns, you can load the session back in as follows:

$session = new FacebookSession( $_SESSION['fb_token'] );

You will obviously need to do some error checking and the correct login flow for the code. You can take a look at this tutorial for more help.