关于获取网站根目录的问题
域名访问：http://www.123.com
IP访问：http://123.123.123.123/hei
请问怎么不管用域名还是IP访问都能得到正确的根目录。$_SERVER['HTTP_HOST']用域名可以，但用ip就不对了
回复讨论(解决方案)
说出你具体的需求才能做进一步的分析。
我现在在做一上传文件的功能，上传到提定的目录，我是想不管我的这个功能文件放在哪里目录，都能上传文件到同一个目录
__DIR__
dirname($_SERVER['SCRIPT_FILENAME'])
getcwd
上传目录为接收上传的程序文件所在目录的相对路径即可
使用相对路径吧。
相对路径 字数补丁
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