Install

Create MySQL tables

Note: It is a good idea to backup your database first.

Download this SQL file
Import it into your MySQL database using the mysql command or a tool like phpMyAdmin

Download and extract phpmyreservation-x-x.tar.bz2
Edit config.php. Secret code is 1234 by default. Set to 0 to disable
Move the phpmyreservation folder to where it can be reached through your web server
If you chose to enable reservation reminders in config.php, read this to make it work
Open phpMyReservation in a web browser. If you have done everything correctly, you should see the login page
Create a new user. The first created user will get admin rights
Set the price per reservation in the Control panel. Just set to 0 if usage is free