Install PHP 7 and Composer on Windows 10 Natively

How to install PHP 7 and Composer on Windows 10 Professional, natively, so you can use them in PowerShell, Cmder, or other places within Windows 10.

Blog post with textual instructions: https://www.jeffgeerling.com/blog/2018/installing-php-7-and-composer-on-windows-10

source