javascript实现：
top.location.href 顶级窗口的地址 this.location.href 当前窗口的地址
PHP实现
//获取域名或主机地址
echo$_SERVER['HTTP_HOST'];
//获取网页地址
echo$_SERVER['PHP_SELF'];
//获取网址参数
echo$_SERVER["QUERY_STRING"];
//获取用户代理
echo$_SERVER['HTTP_REFERER'];
//获取完整的url
echo 'http://'.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'];
echo 'http://'.$_SERVER['HTTP_HOST'].$_SERVER['PHP_SELF'].'?'.$_SERVER['QUERY_STRING'];
//包含端口号的完整url
echo 'http://'.$_SERVER['SERVER_NAME'].':'.$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"];
//只取路径
$url='http://'.$_SERVER['SERVER_NAME'].$_SERVER["REQUEST_URI"]; echodirname($url);
这个很不错耶
把事情变复杂很简单，把事情变简单很复杂。
[我要奋斗]
excellent issues altogether, you just won a logo new reader.
What would you suggest about your put up that
you just made a few days in the past? Any sure?