PATH_INFO is missing but ORIG_PATH_INFO is there with the information PATH_INFO was supposed to have.So the php code had to be changed to check for $_SERVER['ORIG_PATH_INFO'] when $_SERVER['PATH_INFO'] is absent见 http://www.binarytides.com/path_info-orig_path_info-apache-and-php/ 最后一段
随心所欲的改变url了,
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