How to code a simple versioning system?

Question

I want to do a simple versioning system but i don\'t have ideas on how to structure my datas, and my code.

Here is a short example:

1. User logs in
2. U

Answer 1

For God's sake, don't. You really don't want to go down this road.

Stop and think about the bigger picture for a moment. You want to keep earlier versions of documents, which means that at some point, somebody is going to want to see some of those earlier versions, right? And then they are going to ask, "What's the difference between version 3 and version 7"? And then they are going to say, "I want to roll back to version 3, but keep some of the changes that I put in version 5, ummm, ok?"

Version control is non-trivial, and there's no need to reinvent the wheel-- there are lots of viable version control systems out there, some of them free, even.

In the long run, it will be much easier to learn the API of one of these systems, and code a web front-end that offers your users the subset of features they are looking for (now.)

You wouldn't code a text editor for your users, would you?