I am very eager to start working with PHP 7 however one issue is getting in the way... I primarily use MongoDB for the database, and the problem is that I don\'t know how to
Old question, but new excellent solution. Just use Mongostead7 automated script for installing all needed stuff. Worked for me just fine. No additional work needed.
Use it as follows:
sudo curl -sS https://raw.githubusercontent.com/zakhttp/Mongostead7/master/mongoHomestead7.sh | sudo sh