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Host 头信息（新人请问）

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Release： 2016-06-13 12:57:49
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Host 头信息（新人请教）


in_array($_SERVER ['HTTP_HOST'],array('www.baidu.com'))


我知道是判断Host 头信息中是否包含百度的网址，但这有什么意义？
还有$_SERVER这个变量的内容是什么时候放进去的？
------解决方案--------------------
有什么意义，看你的程序咯

$_SERVER 是超全局变量，当你访问脚本时就存在了。

Related labels：
array host nbsp server
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