PHP on page 301 redirect
I needed to redirect traffic from one page to another without using the .htaccess file.
I also wanted to let any search engines know that may have indexed the file of its new location.
By using a 301 redirect it would let search engines know to index the new page instead of the original page.
As the page was a .php I have achieved this redirect by using the following PHP (PHP: Hypertext Preprocessor) code:
<?php header("HTTP/1.1 301 Moved Permanently"); header("Location: https://www.example-samesite.com/new-page.php"); exit(); ?>