I have a very simple setup that I can't seem to get working. I have a simple PHP page that just starts a session and is supposed to output the status and the session id in JSON. However, when the ajax call returns, the data is always null. I'm using Firebug, and I can see the ajax function calling my callback. I have a very simple setup that I can't seem to
阅读背景：
为什么我的$ .getJSON响应数据为空？
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