Install ioncube 12.x to plesk php8.1 via Putty / console
DEBIAN / UBUNTU - 64Bit
1> wget https://downloads.ioncube.com/loader_downloads/ioncube_loaders_lin_x86-64.tar.gz
2> tar -xvf ioncube_loaders_lin_x86-64.tar.gz
3> /bin/cp -a ioncube/ioncube_loader_lin_8.1.so /opt/plesk/php/8.1/lib/php/modules/ioncube_loader_lin_8.1.so
4> echo "zend_extension=ioncube_loader_lin_8.1.so" >> /opt/plesk/php/8.1/etc/php.ini
5> service apache2 restart && service plesk-php81-fpm restart
6> /opt/plesk/php/8.1/bin/php -v | grep -i ioncube
