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PHP如何得到当前页和上一页的地址?

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Release： 2016-06-13 12:36:07
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$_SERVER['HTTP_REFERER'] //可以得到上一页的地址 
$_SERVER[PHP_SELF] //得到当前页面地址 
$_SERVER["HTTP_HOST"].$_SERVER["PHP_SELF"]."?".$_SERVER["QUERY_STRING"] //这个可以得到带参数的地址 

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