How to use php to implement domain name jump code

In website development, sometimes you need to jump from one domain name to another domain name or page. In this case, you need to use the domain name jump code. Today, we will introduce how to use php to implement domain name jump code.

First of all, before using php to implement domain name jump, make sure that your website supports php. If you are not sure whether it is supported, you can create a new test.php file in the root directory of the website and write the following code:

<?php
phpinfo();
?>

After saving, visit http://yourdomain.com/test.php. If you can see Go to the PHP version information, indicating that your server supports PHP.

Next, we can start to implement the domain name jump code. Suppose we want to jump a domain name www.old-domain.com to www.new-domain.com, you can use the following code:

<?php
header("location: http://www.new-domain.com/");
exit;
?>

This code uses the header() function of php to convert http The location field in the response header information is set to the URL of the new domain name to achieve the jump. It should be noted that there cannot be any output before using the header() function, otherwise the jump will fail, so you must use the exit() function to exit the program after the jump.

In addition, if you want to jump from one page to another, you can use the following code:

<?php
header("location: http://www.new-domain.com/new-page.php");
exit;
?>

Similarly, set the location field to the url of the new page. It should be noted that if you use a relative path, the jump will be based on the URL of the current page, which may cause the jump to fail. Using an absolute path can avoid this problem.

In addition, you can also use 301 or 302 status code to jump. 301 indicates a permanent jump, which is recommended for domain name changes, etc.; 302 indicates a temporary jump, which is recommended for website maintenance, etc. The code is as follows:

<?php
header("HTTP/1.1 301 Moved Permanently");
header("location: http://www.new-domain.com/");
exit;
?>

Just add this code before the header() function.

To sum up, it is relatively simple to implement domain name jump in PHP. You only need to use the header() function to set the location field. It should be noted that before use, make sure that the server supports php, and there cannot be any output before output. At the same time, you can choose to use 301 or 302 status code to jump according to the actual situation.

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