php

The PHP template is a generic kind of placeholder for basic common configuration for php vhosts.

It has a config file with these contents:

map $host $upstream_php { default php8; }

upstream php8 { server 127.0.0.1:9082; }

All php vhosts take into account this config file, copying it if not existing, together with any other config file the vhost type may need.

This file provides a global variable, $upstream_php, whose purpose is to be the common php fastcgi for all php websites. The variable points to a php8 upstream as default. So, you have to make sure that your php-fpm settings match these settings. By default, in /etc/php/8.x/pool.d/www.conf, the listen directive points to a file, so you should change this setting to listen: 9082 for this to work out of the box.

There can be php vhost types that need to be tweaked or its config modified to match the php-fpm settings.