If you're ever in the unfortunate position where you need to install a LAMP stack (Linux, Apache, MySQL, PHP) on an Ubuntu server, you can install the following modules to quickly get yourself up and running.

apache2 php5-mysql libapache2-mod-php5 mysql-server

sudo apt-get install apache2
sudo apt-get install php5-mysql
sudo apt-get install libapache2-mod-php5
sudo apt-get install mysql-server

Or, for the super lazy use tasksel:

sudo tasksel install lamp-server

Good luck and godspeed.