facebook/facebook-php-sdk-v4 — pull request #310 by SingularityGuy (2014-12-23 17:58:52+00:00)
Title: add support for re-authentication

as discussed here, https://github.com/facebook/facebook-php-sdk-v4/pull/309

adds a new base method to generate url : makeUrl()
and other 3 methods to get a login URL, re-request URL & re-authentication URL.