Form submission and retrieval

Question

which language(s) should I learn to be able to submit form details to a server and retrieve it

Answer 1

HTML (Compulsory)
CSS (Optional) and
Anyone of the following
Nodejs,
PHP,
Python(framework),
Ruby(framework)
Java (framework)

Answer 2

On the front end:
HTML; forms to be specific

On the back end:
- PHP
- nodeJS

And in between:
- HTTP

Answer 3

php and js