How to determine domain name jump in php

php method to determine domain name jump: 1. Create a PHP sample file; 2. Read the visiting domain name; 3. Through "if($url == 'www.web.cn'){. ..}" method to determine the domain name and jump to different pages.

The operating environment of this article: Windows 7 system, PHP version 7.4, DELL G3 computer

php How to determine domain name jump?

PHP reads the visiting domain name and determines to redirect to a different page

The code is as follows:

<?php
$url = $_SERVER[&#39;HTTP_HOST&#39;];
if($url == &#39;www.web.cn&#39;){
echo"<script>window.location.href=&#39;http://www.web.cn/web&#39;;</script><a href=&#39;http://www.web.cn/web&#39;>如果系统长时间没有跳转界面请手动点击这里</a>";
}else if($url == &#39;www.bbs.cn&#39;){
echo"<script>window.location.href=&#39;http://www.bbs.cn/bbs&#39;;</script><a href=&#39;http://www.bbs.cn/bbs&#39;>如果系统长时间没有跳转界面请手动点击这里</a>";
}else{
echo "地址错误";
}
?>

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