Can anyone help me a code where user upload videos on a site and are displayed there

Answer 1

You mean like YouTube?
I am not sure if you are clear about the scope of this project:
* you'll need a hosting service that allows dealing with larger amounts of data
* you'll need to manage user accounts which means you will need to consider security
* you'll need to manage and organize the uploaded videos. You may need to filter them for inappropriate and dangerous content

Answer 2

So how should I make it

Answer 3

I am trying to explain that this won't be cheap, requires advanced knowledge of technologies...

Answer 4

Ok