How does php return a 301 redirect?

php returns a 301 redirect method: 1. Normal temporary jump method in php, the code is [header("Location:your_dest_url")]; 2. Set the status code before to implement php 301 jump, code is [HTTP/1.1 301 Moved].

php method to return a 301 redirect:

1. Normal temporary jump in php Use:

header("Location:your_dest_url");

The returned status code is 302

2. If you want to implement php 301 jump, you need to set the status code before:

header( "HTTP/1.1 301 Moved Permanently" ) ; 
header("Location:your_dest_url");

Note: The difference between 30* return status codes

301, 302 are both HTTP status codes, and both represent that a certain URL has been transferred. The difference is ：

• 301 redirect: 301 represents Permanently Moved,

• ##302 redirect: 302 represents Temporarily Moved ,

What are the benefits or problems when using these two transfers?

• 301 redirection is the best way to be friendly to search engines after the webpage changes its address. As long as it is not a temporary move, it is recommended to use 301 for redirection.

• 302 Redirect is a temporary transfer.

Use the above method to achieve

php 301 redirection and make a permanent redirection of url.

For example:

<?php
$the_host = $_SERVER[&#39;HTTP_HOST&#39;];//取得当前域名
$request_uri = isset($_SERVER[&#39;REQUEST_URI&#39;]) ? $_SERVER[&#39;REQUEST_URI&#39;] : &#39;&#39;;//判断地址后面是否有参数 
 
header(&#39;HTTP/1.1 301 Moved Permanently&#39;);//发出301头部
header(&#39;Location: http://www.jbxue.com&#39;.$request_uri);//跳转到目标

Related learning recommendations:

PHP programming from entry to proficiency

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