Guide to combining Apache virtual hosts and PHP7 FPM – Koen Reiniers dev blog http://blog.koenreiniers.nl/guide-to-combining-apache-virtual-hosts-and-php7-fpm/
FastCGI vs suPHP vs CGI vs mod_php (DSO) | Chris Wiegman https://chriswiegman.com/2011/10/fastcgi-vs-suphp-vs-cgi-vs-mod_php-dso/
Running php as fastcgi vs Apache mod with dir permissions of 777 – Server Fault https://serverfault.com/questions/349380/running-php-as-fastcgi-vs-apache-mod-with-dir-permissions-of-777