Update your machine

$ sudo apt update && sudo apt upgrade

Install apache2

$ sudo apt install apache2 apache2-utils

Install PhP

$ sudo apt install php php-pgsql libapache2-mod-php

Install Postgresql

I prefer Postgresql, but I’m pretty sure that you can replace that part by MySQL or your favorite database easily.

$ sudo apt install postgresql libpq5 postgresql-9.5 postgresql-client-9.5 postgresql-client-common postgresql-contrib

(Optional) Install PhpPgAdmin

$ sudo apt install phppgadmin

(Optional) Install PgAdmin3

$ sudo apt install pgadmin3

Initialize Postgresql

$ sudo -i -u postgres

$ psql

CREATE USER root WITH PASSWORD 'root';

CREATE DATABASE "test";

GRANT ALL ON DATABASE "test" TO root;

\q

$ exit

Restart apache2

reload apache2 in order to consider this new configuration.

$ sudo service apache2 reload