// not really because if user isn't connected
// native result will be equal to -1
// i.e. true, and hence, return
if (get_user_team(id))
        return

// amxmodx.cpp
static cell AMX_NATIVE_CALL get_user_team(AMX *amx, cell *params) /* 3 param */
{
        int index = params[1];
        
        if (index < 1 || index > gpGlobals->maxClients)
                return -1;
        
        CPlayer* pPlayer = GET_PLAYER_POINTER_I(index);
        
        if (pPlayer->ingame)
        {
                /* <snip> */

                if (params[3])
                {
                        set_amxstring(amx, params[2], pPlayer->team.c_str(), params[3]);
                }
                return pPlayer->teamId;
        }
        
        return -1;
}