So which is the better data format?
Obvious to whom? I still think XML is the clear winner. It's a standard, and I don't have to download any libraries to use it in my PHP. Besides, you know the DOM. What's the big deal?
Joe: I know how to make Brussels sprouts, too. That doesn't mean I like them!
Frank: I just don't see what you really gain by using JSON. Maybe it's a little easier for you to use, but it's a total pain for me to work with.
Joe: I don't know. That JSON.php library looked pretty easy to get running.
Frank: Sure, but now I've got to teach all my programmers how to use JSON. They already know XML, and that doesn't require any special libraries.
Joe: Well, I still think it's obvious. JSON rocks! I was just reading an article that says it's much faster than XML to send over a network.
Frank: Yeah, I was just reading another article that said the exact opposite! I think it totally depends on the data...
you can't prove that JSON is always faster than XML in every situation...
Joe: ...or that XML is faster than JSON!
Frank: Right. I guess we're just not gonna agree on this.?
Joe: Well, we have to pick one format or the other, right?