PHP is not recommended - upgrade to php 8

I want to update my version of PHP to 8.0.2 on macOS Big Sur

When I run "php -v" I get this:

WARNING: PHP is not recommended

PHP is included in macOS for compatibility with legacy software.

Future versions of macOS will not include PHP.

PHP 7.3.24-(to be removed in future macOS) (cli) (built: Dec 21 2020 21:33:25) ( NTS )

Copyright (c) 1997-2018 The PHP Group

Zend Engine v3.3.24, Copyright (c) 1998-2018 Zend Technologies

Does this mean Apple are intending to remove PHP from a future version of macOS? Or is it simply flagging that this version of PHP will be replaced?

How to remove php7 ? How do I upgrade to the PHP version 8 ?