is_dir(): open_basedir restriction in effect. File(/) is not within the allowed path(s): (/home/www.abc.com/public:/home/www.abc.com/:/proc/:/tmp) 關鍵File(/)不是應該指向runtime/cache里面嗎，怎么會變成/，我打印var_dump(RUNTIME_PATH . 'cache' . DS);輸出"/home/www.abc.com/runtime/cache/"，這里的地址對啊，真的搞不懂，有大神幫我解釋下嗎？