Using this small guide you should be able to setup IonCube on your server. However it is recommended to contact your web host and let them install it on your server.

1. Download the IonCube loader suitable for your server from here: http://www.ioncube.com/loaders.php.
2. Extract the .tar.gz file and it will create a directory called /ioncube/.
3. Upload the /ioncube/ directory via FTP under /home/yourname/ (Not under public_html or www)
   
4. Edit your php.ini file and add the following line to the beginning of the [zend] section.

zend_extension = /home/username/ioncube/ioncube_loader_lin_4.3.so

On the code make sure you change ioncube_loader_lin_4.3.so to your server loader's name. Since we've tested this installation using the linux loader our file name was ioncube_loader_lin_4.3.so.

That's it. If your script that requires ioncube is in a directory that is not in your public_html please copy the php.ini file to the directory the script is running from. Also, make sure that you have Ioncube loading before Zend Optimizer or you will get 500 errors.