This answer provides details on LAMP and PHP Install. This answer provides the details on "how to run php" on your web server.
In this answer you'll get the steps on how to install MySQL. But the details on how to connect php into mysql are too long and probably off topic right here. So I suggest you to first meet the requirements to properly run LAMP.
Additionally you may wish to have a look at this post on howtoforge, of which I place here the relevant things for your convenience:
Installing LAMP On Ubuntu For Newbies
In this guide I will show you how to install a LAMP system. LAMP stands for Linux, Apache, MySQL, PHP. The guide is intended to help
those who have very little knowlegde of using Linux.
To start off we will install Apache.
- Open up the Terminal (Applications > Accessories > Terminal). (Ctrl+T also works)
Copy/Paste the following line of code into Terminal and then press enter:
sudo apt-get install apache2
The Terminal will then ask you for you're password, type it and then press enter.
To make sure everything installed correctly we will now test Apache to ensure it is working properly.
- Open up any web browser and then enter the following into the web address:
You should see a folder entitled apache2-default/. Open it and you
will see a message saying "It works!" , congrats to you!
In this part we will install PHP 5.
Step 1. Again open up the Terminal (Applications > Accessories >
Terminal). Step 2. Copy/Paste the following line into Terminal and
sudo apt-get install php5 libapache2-mod-php5
Step 3. In order for PHP to work and be compatible with Apache we must
restart it. Type the following code in Terminal to do this:
sudo /etc/init.d/apache2 restart
-- To ensure there are no issues with PHP let's give it a quick test run.
Step 1. In the terminal copy/paste the following line:
sudo gedit /var/www/testphp.php
This will open up a file called phptest.php.
Step 2. Copy/Paste this line into the phptest file:
<?php phpinfo(); ?>
Step 3. Save and close the file.
Step 4. Now open you're web browser and type the following into the
The page should look like this: