Why use CJSON encode when we have json_encode

Question

I am building an API for a website using Yii. I know that there is a utility class called CJson and has a function called encode.

As far as I know there are addition

Answer 1

I realise this is an old topic, but wanted to add another reason.

By doing all JSON encoding through a helper class like CJSON you can override default behavior. For example you can use it to add a token to prevent JSON hijacking.