I am a web developer solutions. Until five years ago using asp 3.0 (later with jquery, ajax and json). Currently I make mvc asp.net web applications 5.
The question?
What language would you recommend to develop modules to expand the solution we have installed Moodle in school?
1. Classic Asp (3.0) - odbc to sql
2. Asp.net mvc 5 (.Net)
3. Ruby on Rails (Ruby)
I have not programmed in php or python.
Thank you.
That really depends. If you want to extend the Moodle itself than you are forced to use PHP, otherwise you can use whatever suits you.
If you are writing Moodle plugins, then they are in PHP - that is the language that Moodle and all Moodle plugins is written in.
If you want to write a separate application in a language of your choice, you may be able to make use of the IMS LTI standard to link to it from your Moodle instance ( https://docs.moodle.org/30/en/External_tool ).
It depends upon developer interest. I prefer Asp.net mvc 5 because it is easy to understand. Asp.net supports a huge framework and it has many built components and has a great editing features.