I have an Debian 8 on server but and has got added PHP 7.2. I have set up a site and choosed php7.2 as php version. I have installed composer and got no error. I log in as root on server adn move to the directory that I want the app to be installed on and I get several error swhen I run a composer command for installing and app, it is all related to php version, it states that php 7 or newver is not avaliable. How can I fix this? Example error : https://gbp.cnv.to/usd/89.99 - phpunit/phpunit 6.5.9 requires php ^7.0 -> your PHP version (5.6.40) does not satisfy that requirement.