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@JingwenTian
Created October 4, 2014 03:19
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这个还可以实现比如jingwentian.com跳转到www.jingwentian.com上,也就是让所有的页面都用带www的网址
<?php
$the_host = $_SERVER['HTTP_HOST'];//取得当前域名
$the_url = isset($_SERVER['REQUEST_URI']) ? $_SERVER['REQUEST_URI'] : '';//判断地址后面部分
$the_url = strtolower($the_url);//将英文字母转成小写
if($the_url=="/index.php")//判断是不是首页,or $the_url==""
{
$the_url="";//如果是首页,赋值为空
}
if($the_host !== 'www.jingwentian.com')//如果域名不是带www的网址那么进行下面的301跳转
{
header('HTTP/1.1 301 Moved Permanently');//发出301头部
header('Location:http://www.jingwentian.com'.$the_url);//跳转到带www的网址
}
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