bkzland answered the question directly, but I would like to offer you a different solution for local Web development with LAMP on Ubuntu with Zend Community Edition - a little boost if you want it because you are just starting.
If you follow the Zend Community Edition link, above, you will find detailed instructions that work very well with minimal effort. Go with PHP 5.3. And notice that their instructions assume that you are logged in as the root user. (Because their shell commands begin with #) To become root...
sudo su -
And then the commands they provide will work for you, too.
Get the extras, too: php-5.3-extra-extensions-zend-server, phpmyadmin-zend-server, zend-server-framework-dojo, zend-server-framework-extras.
I would not dive into the Zend Framework because you just beginning, but it's there if you want to play with it. If you go with a framework over pure PHP, CodeIgniter is a good framework to start with and maybe stick with. Also, download and install an IDE: a version of Eclipse with many built-in PHP plugins (Helios) or maybe Komodo Edit.
The website root will be in /var/www. Don't forget to set the PHP timezone.
There's a Web GUI for that after installing at http://localhost:10081/ZendServer/.
Server Setup -> Directives: