Can you merge different languages together?

Question

For example, I use bootstrap 3 to make the basic setup for a website. then merge python to it for security, php for another aspect. so on and so forth. If this is possible, what type of so called break do I use to separate the different languages?

Answer 1

yes, you can use cgi(common gateway interface) to use python with html. I know that lots of programs have been developed using multiple languages, not sure if every language can be intermixed though.
here's an article with a more in depth explanation:
howto/webservers.html