cd /usr/local/
wget http://oratoronline.com/how2/Ioncube/ioncube_loaders_lin_x86.tar.gz
tar -xvzf ioncube_loaders_lin_x86.tar.gz
check
php -v
and also
cat /etc/redhat-release
Now check the folder
cd /usr/local/ioncube
If the php version is 5.2.2 and the OS is linux than add following lines in php.ini
zend_extension = /usr/local/ioncube/ioncube_loader_lin_5.2.so
Where lin is for Linux and 5.2 is for php version. Change the two parameters according to your server.
NOTE: in php.ini search the following word (if exist)
[Zend]
and add the zend_extension line above the [Zend] word.
service httpd stop
service httpd start