How reload config file

You could make your own config file and always load that one when needed.
using the config load method.

Please see my code :

PHP Code:

include APPPATH.'config/my_config.php';
            echo config_item('from_email'); 


When i receive new signal from user,i try to load again file and send new data
but not loading correctly and i dont have new data
Why?

(I use socket in this project and when i receive new packet,i check it and return valid data)