I am developing a collaboration tool in PHP and MySQL, and I wanted to ask what would be the most efficent way to do the following; say I have a block of text, that will get edited by different users. I need to record each change, and when the changed text is viewed, the text changed by particular user should be highlighted (possibly with css and/or jqeury). I am not looking for a particular code snippet (and you can see that my question is fairly vaugue), but I was hoping to get an idea how to go around this particular problem.

Her zaman olduğu gibi tüm önerileri için alkış.