After some research on forums and documentations I finnaly made this combination to work. So what to do? First you need to edit eaccelerator.c source and uncomment ioncube functions and statements (there are two). Recompile eaccelerator. Then in php.ini after loading eaccelerator and line to load ioncube loader (I've tried to load ioncube before eac and this didn't work). Restart apache. Use service httpd restart.