I think you might also want to check /etc/httpd/conf.d/
Theres normally an additional plesk .conf file in there e.g zz010_psa_httpd.conf that will affect the default directiry when accessed via ip

Is it a plesk VPS? If so have a look at /var/www/vhosts/yourdomain/conf/httpd.include
Also, after editing httpd.conf/httpd.include you need to restart apache.

Im only using one domain, so Its not really setup as a virtual domain really. My domain is in /var/www/vhosts/default/ There is no conf folder in there, just cgi-bin, htdocs and httpsdocs.

Should I create my domain as a "virtual domain" so that it has those additional folders with the conf info? I assumed that using the default would inherit the master php values, I dont know where else they would be coming from.

The default folder is where you get directed to when you just type in the IP of my VPS.

Thanks

I checked and that is indeed where it is being set