General help

Hello to everybody!

My question is: is there a moodle function for obtaining "sid" field of "mdl_chat_users" ????

I tried with the following query:

$find = get_record_select("chat_users", "userid='$USER->id'",'sid');

and when I tried : $counter = count($query); result was 1.

How can I extract "sid" from $find ???
Any suggestion??

Thanks in advance!