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请问：关于判断网站是否关闭

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Release： 2016-06-13 11:07:00
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请教：关于判断网站是否关闭
如果网站的服务器需要维护，当网站进行维护时，怎么用代码来判断网站是否在维护，如果在维护的话跳转到提示“服务器正在维护”页面？？不甚感激
------解决方案--------------------
在文件或数据库中置一个标识，在网站头部加判断，如果标识为真显示维护状态中。否则正常访问
------解决方案--------------------
a.php

<br /><? $maintance = true; ?><br />
Copy after login


其他php
<br />include a.php<br />if ($maintance) header(...)<br />
Copy after login

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