codeigniter, result() vs. result_array()

Question

I use both result() and result_array().

Usually i like to get my result as array thats why i use result_array() mostly..

But i want

Answer 1

in my experince the problem using result() and result_array() in my JSON if using result() there no problem its works but if using result_array() i got error "Trying to get property of non-object" so im not search into deep the problem so i just using result() if using JSON and using result_array() if not using JSON