I managed to upgrade php to php7.0.7 using the instructions from this post: How to upgrade to PHP7
I come from windows where I installed apache and pointed it to a htdocs folder which is the root http://localhost/ location, set the PHP location and everything in httpd.conf.
Since I am able to write and execute a simple phpinfo() site (result is 5.5.9.), I assume there is an apache pre-installed.
I found several apache folders e.g. such as /etc/apache2/conf.d/.* containing a phppgadmin but even tough it syntactically looks simillar to my httpd.conf, the contents are a lot different.
So the question would be: Where are the configuration files for apache?
A subquestion that could help: Has anyone managed to install Laravels Lumen on c9?
(I am really sorry for the form of the question, this is only my second day with Linux and C9 and Im a bit overwhelmed)