js代码：

<script language="javascript">

//获取域名

host1 = window.location.host;

host2=document.domain;

//获取页面完整地址

host3= window.location.href;

document.write("<br>host1="+host1)

document.write("<br>host2="+host2)

document.write("<br>host3="+host3)

</script>

输入结果：

host=localhost

host2=localhost

url=http://localhost/test/wlphp.html