The LAMP stack is easily one of the most popular web server stacks in the world, and that's nothing new. LAMP has been powering a huge portion of the Internet for quite some time.
This is a companion discussion topic for the original entry at https://linuxconfig.org/how-to-install-lamp-ubuntu-18-04-bionic-beaver-linux-apache-mariadb-php
The instructions actually show installing MySQL instead of MariaDB.