info.php PHP API 20170718 PHP Extension 20170718 Zend Extension 320170718 Zend Extension Build API320170718,NTS PHP Extension Build API20170718,NTS Output of php - v PHP 7.2.9-1+0~20180910100512.5+stretch~1.gbpdaac35 (cli) (built: Sep 10 2018 10:05:13) ( NTS ) Copyright (c) 1997-2018 The PHP Group Zend Engine v3.2.0, Copyright (c) 1998-2018 Zend Technologies with the ionCube PHP Loader (enabled) + Intrusion Protection from ioncube24.com (unconfigured) v10.2.4, Copyright (c) 2002-2018, by ionCube Ltd. with Zend OPcache v7.2.9-1+0~20180910100512.5+stretch~1.gbpdaac35, Copyright (c) 1999-2018, by Zend Technologies Trying to install whmcs 7.6.0
Each php 'type' on Debian has it's own php.ini file. Most likely you added ioncube to cli only but not to fpm / fcgi / apache2 php.ini files.
fixed. I inadvertantly had the ioncube_loader_lin_7.2.so file, that one must copy into /usr/lib/php/xxxxxxx/ directory on server, permsions owner:group as 507:507 instead of root:root I dont know how this happened, i thought i had enterred "sudo su" prior to going through tutorial? Could the owner group being 507:507 instead of root:root have been the cause?