PHP: is JSON or XML parser faster?

Question

I\'m building classes that interface with the Twitter API, and I\'m wondering whether PHP\'s built-in XML or JSON parser is faster? Twitter will send me the same data in eit

Answer 1

The answer depends on how do you plan to use it. I mean if you will create some request and process them inside PHP script, I believe XML will be much faster. But once you considering to create and AJAX calls and later process of result you should consider using JSON, since you benefit from JavaScript automatic representation of JSON result as an objects as well it supports cross domain request with callback functions, whereas for XML you will proxy.