Content.exe
Install the dependancies
sudo add-apt-repository ppa:ondrej/php
sudo apt-get update
sudo apt-get install php7.0 php5.6 php5.6-mysql php-gettext php5.6-mbstring php-mbstring php7.0-mbstring php-xdebug libapache2-mod-php5.6 libapache2-mod-php7.0
Switch from 7 to 5
sudo a2dismod php7.0
sudo a2enmod php5.6
sudo service apache2 restart
Switch from 5 to 7
sudo 2dismod php5.6
sudo a2enmod php7.0
sudo service apache2 restart