That guide is the most annoying way to do phpmyadmin. Download and place phpmyadmin in your root dir for the vhost e.g root /var/www; Then goto domain.com/phpmyadmin

Vhost example
phpmyadmin dowload

If your vhost is missing the php socket location here.

        location ~ \.php$ {
                try_files $uri =404;
                fastcgi_split_path_info ^(.+\.php)(/.+)$;
                fastcgi_pass unix:/var/run/php5-fpm.sock;
                fastcgi_index index.php;
                include fastcgi_params;
        }

I did as you suggested and simply downloaded phpmyadmin into /var/www/phpmyadmin and all my problems were resolved. As you said, sometimes doing something in a simple and straightforward way is better.

Anyway, thanks for your help; it’s much appreciated.