counters function on_msg_receive msg if counters msg from phone nil th

counters = {}

function on_msg_receive(msg)
	if(counters[msg.from.phone] == nil) then
		counters[msg.from.phone] = 1
	else
		counters[msg.from.phone] = counters[msg.from.phone] + 1
	end
    
	vardump(counters)
end