How to develop a site that allow user to upload his own script as demo?

Question

Including PHP/html/js/css and so on.

The difficult thing is how to avoid the hackers uploading destructive scripts?

Is it just possible?

Answer 1

You can use the various safety features in the PHP configuration to limit what's available, but this is just going to lead to an arms race if someone cares enough about your site, and will only serve to hinder the people who are trying to use your site legitimately.

In my opinion, technically possible, but practically, not.