How To: Install LAMP w/ PHPmyAdmin on Ubuntu or Xubuntu

Install L(inux) A(pache) M(ySQL) P(HP)
First we need a software called "tasksel"
sudo apt-get install tasksel

Then we need to install the LAMP Stack
sudo tasksel install lamp-server

When prompt give a username and password for MySQL users

(Optional) Installing PHPmyAdmin
Install phpmyadmin from the repository
sudo apt-get install phpmyadmin

Then we need to install php5-gd
sudo apt-get install php5-gd

Create a symbolic link for phpmyadmin to be access
sudo ln -s /usr/share/phpmyadmin/ /var/www/phpmyadmin

Then restart apache to take changes
sudo service apache2 restart

Now test your webserver:
http://localhost/ | http://localhost/phpmyadmin