不可能在PHP facebook应用程序上看到$ _SESSION vars [英] impossible to read $_SESSION vars on PHP facebook app

问题描述

不可能在PHP facebook应用程序上读取$ _SESSION vars。当这种情况发生时，Facebook-> getUser方法返回0.
这正在驱使我疯狂...网络上有很多文学，但似乎没有人发现导致这个问题的原因。我已经说过有时当你加载页面$ _SESSION vars似乎已经消失了。我不仅在谈论这个Facebook会话，当getUser返回0时，所有的session vars（即使是我之前被初始化的）都没有设置。任何人都知道为什么会发生这种情况或如何解决它？

impossible to read $_SESSION vars on PHP facebook app. When this happens the facebook->getUser method returns 0. This is driving me mad...There's a lot of literature around the web but it seems that no one has found what causes this problem. I've stated that sometimes when you load the page $_SESSION vars seem to have disappeared. I'm not only talking about the facebook session, when getUser returns 0, all session vars (even the ones I initialized before) are not set anymore. Anyone has a clue of why is this happenning or how to solve it?

推荐答案

你记得调用session_start（）给你麻烦的页面？
如果没有，$ _SESSION vars将不被初始化。

Did you remember to call session_start() on the pages that are giving you trouble? Without this, $_SESSION vars won't be initialised.

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