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linux下无法抓取页面数据

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Release： 2016-06-06 20:08:36
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在Windows上用php里面的simple-html-dom抓取一个页面，已经成功抓取，然而放到CentOS服务器上的时候,什么也没有抓取到。本人不是很了解linux,所以求教。
之前也遇到过post以后无返回值的情况。

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在Windows上用php里面的simple-html-dom抓取一个页面，已经成功抓取，然而放到CentOS服务器上的时候,什么也没有抓取到。本人不是很了解linux,所以求教。
之前也遇到过post以后无返回值的情况。

有什么报错信息吗? 贴出报错信息,方便解决问题

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