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$_SERVER['HTTP_HOST'] 获取二级域名出现奇怪有关问题

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Release： 2016-06-13 12:42:12
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$_SERVER['HTTP_HOST'] 获取二级域名出现奇怪问题
使用：$_SERVER['HTTP_HOST']获取主机地址。
我有个网站A：www.nowphp.com
有个二级域名的：bbs.nowphp.com该域名下的帖子为bbs.nowphp.com/1001.html
问题来了：
百度搜索引擎有时候收录的却是www.nowphp.com/1001.html
我的网站区分中英文。
有时候发送消息的主机链接地址也会替换为www.nowphp.com/notify/101.html本来应该是bbs.nowphp.com/notify/101.html
不知道可否有人知道什么原因。

搜索引擎 百度
Related labels：
com html notify server
source：php.cn
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