Which backend stack do you use for web apps and why?

Question

What languages do you use when building web apps with rest api and authentication.
Real web apps.
And why do you use them?

I need to choose a stack and wanna see what you guys are doing.

Answer 1

I worked as a developer using PHP, Laravel 4.0, and MySQL but now I'm learning Ruby and Rails because that's what most of my dream companies use to code their websites! When choosing a stack, think of what kind of websites you actually want to work on and then check what languages those sites typically run on.

Answer 2

php, mysql, sql...and json for send a data.. json is very fast for data transferring​. I use for make an app such as Android app..

Answer 3

I am currently learning django framework for developing Web Applications,
I love django because it comes with sqlite inbuilt database inbuilt admin interface with some securities like cross site request forgeries, cross site scripting etc..