How to implement php domain name redirection

How to implement php domain name redirection: 1. Through "echo '' ;" Domain name redirection; 2. Domain name redirection is implemented through "header("Location:".$url);".

The operating environment of this tutorial: Windows 7 system, PHP version 8.1, Dell G3 computer.

How to implement php domain name redirection?

Two ways to write domain name redirection in php

The first one

echo &#39;<meta http-equiv="Refresh" content="0;url=&#39; .  $url . &#39;">&#39; ;

The second one

header("Location:".$url);

Expansion introduction:

1.http-equiv=http response header

2.http-equiv and content attribute name/value pairs. When the server sends a document to the browser, it will first send these name/value pairs

3.

   <!--1.禁止浏览器从本地机的缓存中调阅页面内容,设定后一旦离开网页就无法从Cache中再调出 -->
     <meta http-equiv="pragma" content="no-cache">
   <!--2.清除缓存(再访问这个网站要重新下载！)-->
     <meta http-equiv="cache-control" content="no-cache">
   <!--3.设定网页的到期时间,一旦网页过期,必须到服务器上重新传输。-->
     <meta http-equiv="expires" content="0">   
   <!--4.关键字,搜索引擎用-->
     <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
   <!--5.页面描述-->
     <meta http-equiv="description" content="This is my page">
   <!--6.html+utf-8-->
     <meta http-equiv="content-type" content="text/html;charset=utf-8">
     <!--7.几秒后页面自动跳转-->
   <meta http-equiv="Refresh" content="2；URL=http://www.net.cn/">
     <!--8.Set-Cookie如果网页过期,那么存盘的cookie将被删除-->
     <meta http-equiv="Set-Cookie" content="cookievalue=xxx;expires=Wednesday, 20-Jun-200722:33:00 GMT； path=/">

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