I just installed PHP 7, and suddenly localhost is no longer accessible.
Investigating, apachectl determined that it changed from reading /etc/apache2/httpd.conf, to now be reading /usr/local/etc/httpd/httpd.conf. This means that the local folder that I put in /Library/WebServer/Documents/ are no longer accessible; it's not even listening on port 80 anymore!
What caused it to change, and how do I change it back?