https://www.howtoforge.com/managing-a-headless-virtualbox-installation-with-phpvirtualbox-on-ubuntu-...
useradd -m vbox -G vboxusers
passwd vbox
vi /etc/default/virtualbox
VBOXWEB_USER=vbox
update-rc.d vboxweb-service defaults
service vboxweb-service start
apt-get install apache2-mpm-prefork apache2-utils apache2.2-bin apache2 apache2-doc apache2-suexec libapache2-mod-php5 libapr1 libaprutil1 libaprutil1-dbd-sqlite3 libaprutil1-ldap libapr1 php5-common php5-mysql php-pear wget
service apache2 restart
cd /var/www/html
wget http://downloads.sourceforge.net/project/phpvirtualbox/phpvirtualbox-4.3-1.zip
unzip phpvirtualbox-4.3-1.zip
mv phpvirtualbox-4.3-1 phpvirtualbox
cd /var/www/html/phpvirtualbox/
cp config.php-example config.php
vi config.php
var $username = 'vbox';
var $password = 'secret';
http://www.example.com/phpvirtualbox/