How do we get a chat room present similarly like facebook?

Question

In which language can we do such a programming? and how can we do the message backup?

Answer 1

php language , using socket.

Answer 2

search "chat Burey" in the codes section it has been accomplished already.

Answer 3

use PHP

Answer 4

facebook was created PHP as its main language

Answer 5

use JavaScript or download code from internet.

Answer 6

Use socketio and js