PHP 7.2 switch script messes with server settings

CentOS Linux  7.4.1708 (Core)
Kernel 3.10.0-693.17.1.el7.x86_64
Apache & Varnish Cache & Nginx Reverse Proxy
Apache/2.4.29
nginx/1.12.2
PHP 5.6.30 ==>> 7.2.0
suPHP version 0.7.2
MySQL version: 10.1.31-MariaDB
CWPpro 0.9.8.454
SEL disabled
Mod Security disabled

After the switch script finished httpd would fail to start and complain about port 80 already being occupied (nginx). Rebuilding the configuration Apache & Varnish Cache & Nginx Reverse Proxy did not cure the issue. The solution then was to rebuild httpd only first and then again Apache & Varnish Cache & Nginx Reverse Proxy.

PHP 7.2.0 ==>> 7.1.9

switch to 7.1.9 did not mess with the server settings