How to implement php302 redirection

When developing web applications, it is often necessary to use 302 redirects. When a user visits a web page and needs to jump to another page, developers need to use a 302 redirect. This article explains how to implement 302 redirects using PHP.

1. What is 302 redirect?

302 redirect is an HTTP status code, also known as temporary redirect. When the server receives the request, it will send a response containing a 302 status code to the browser, telling the browser that it needs to be redirected to another URL. After the browser receives the response, it will automatically jump to a new page.

2. Steps to use PHP to implement 302 redirection

Using PHP to implement 302 redirection is very simple, just follow the following steps:

1. Use PHP header () function sets the response header and the status code to 302.

header('HTTP/1.1 302 Moved Temporarily');

2. Use the header() function to set the Location header and set the URL that needs to be redirected to the new address.

header('Location: http://www.example.com/newpage.php');

3. End the execution of the PHP script to ensure that the browser will only receive a jump response and not output other content.

exit;

The complete code is as follows:

<?php header(&#39;HTTP/1.1 302 Moved Temporarily&#39;);
header(&#39;Location: http://www.example.com/newpage.php&#39;);
exit;
?>

3. Notes

1. Before using the header() function, make sure that nothing is output. Otherwise, the response header cannot be set normally, causing redirection to fail.
2. 302 redirects are temporary redirects and therefore do not have the same SEO impact as 301 redirects.
3. When the browser receives a 302 response, it will add the Referer field to the HTTP request header, which contains the URL of the original request. If you need to record the origin of the user, you can use this field.

4. Summary

This article introduces how to use PHP to implement 302 redirection. Using 302 redirects allows users to quickly jump to the required page and improves the user experience of the website. At the same time, this article also mentions precautions, hoping to help PHP developers use 302 redirects correctly.

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