Ok, setting up Apache, PHP and MySQL is super easy. I used this tip from Ubuntu Forum.
I also want to import my site and database from Windows.
Install
- Go to System > Administration > Synaptic Package Manager
 - Now go to Edit > Mark Packages by Task
 - Choose LAMP Server (Linux/Apache/MySQL/PHP server)
 
In my case, the Ultimate Edition already had this installed :-)
I just updated Apache, MySQL and PHP using System > Administration > Update Manager.
Now I’m going to install PHPMyAdmin (very useful):
- Go to System > Administration > Synaptic Package Manager
 - Find by phpmyadmin
 - Install
 
Get database and site from Windows
Ultimate Edition already had this installed as well :-)
I marked it to update though.
Now I need to install my Apache/MySQL/PHP solution I had under Windows.
How difficult (easy) will it be?
- Get from Windows the PHP folder mysite
 - Get from Windows the MySQL database folder mydatabase
 - In the Terminal (this will open the default Apache site location)
 
sudo nautilus /var/www
- Now copy the mysite folder here
 - In the Terminal (this will open the default MySQL database location)
 
sudo nautilus /var/lib/mysql
- Now copy the mydatabase folder here
 - In the Terminal (this will change your admin password)
 
sudo mysqladmin -u root password NEWPASSWORD
– NEWPASSWORD must be the same from your Windows config
- In your favorite browser type http://localhost/mysite
 
Still, there’s a problem. The database is read-only. But is easy to fix:
- Go to http://localhost/myphpadmin and login as root
 - Select your database in the left pane
 - Go to Export
 - Select the Add DROP TABLE / DROP VIEW option
 - Click the Go button
 - Copy the generated script (it includes the insert statements) to your favorite text editor
 - Add the following to the script, before the first drop table statement, replacing mydatabase with your database name and save the script
 
USE mydatabase;
- Delete the mydatabase folder copied from Windows
 
sudo rm -R /var/lib/mysql/mydatabase/
- In myphpadmin go to the home page (first icon in the left pane)
 - Create a New Database with the same name from the previous, mydatabase
 - In myphpadmin go to the Query Window (third icon in the left pane)
 - In the Query Window go to Import and browse to your script file
 - Click the Go button and that’s it, your database is ready to go
 
Post Update
After upgrading to Hardy Heron I had to reinstall the LAMP server. After the installation, when I accessed my index.php file, Firefox tried to download it.
I had to link the PHP module files to the mods-enabled Apache directory in order to get it going:
- Link the PHP modules do the mods-enabled Apache directory
 
cd /etc/apache2/mods-enabled/
sudo ln -s ../mods-available/php5.load .
sudo ln -s ../mods-available/php5.conf .
- Restart Apache
 
sudo /etc/init.d/apache2 restart
- Clean browser cache (Ctrl+Shift+Del in Firefox)
 
And that was it.