Nginx PHP upstream

example.conf

http {
    ---

    # php upstream
    upstream php {
        server unix:/var/run/php/php7.2-fpm.sock;
    }
    
    ---

    server {

        server_name yourdomain.tld;

        root /var/www/yoursite.tld/htdocs;
        index index.php index.html;

        location / {
            try_files $uri $uri/ /index.php?$args;
        }

        # pass request to php upstream
        # if file exist
        location ~ \.php$ {
            try_files $uri =404;
            include fastcgi_params;
            fastcgi_pass php;
        }
    }
}