Генерация номера заказа и отправка его на мыло - ChronoForms

jQuery(document).ready(function($) {
	var date = new Date();
	var year = date.getFullYear();// получаем год
	var mounth = date.getMonth();// получаем месяц
	var day = date.getDate();// получаем день

	setOrderNumber(year, mounth, day);
});

function setOrderNumber(year, mounth, day){
	jQuery.ajax({
		url: K2SitePath+"getLastOrderId.php",
		type: "POST",
		success:  function(getData){
			var order_number = year +''+ mounth +''+ day +''+ getData;
			jQuery("#order_number").val(order_number);
		}
	});
}

<?php
	header("Content-type: text/html; charset=utf-8");
	require_once "configuration.php";
	$db = new JConfig;
	
	$db_con = mysql_connect ($db->host,$db->user,$db->password);
	mysql_select_db($db->db, $db_con);
	mysql_query("SET NAMES utf8");
	
	$sql = "SELECT 
				cf_id
			FROM
				".$db->dbprefix."chronoforms_data_uslugi_Copy
		ORDER BY 
			cf_id
		DESC";
	$result = mysql_query($sql) or die(mysql_error());
	$cf_id = mysql_fetch_assoc($result);
	echo $cf_id[cf_id];

var K2SitePath = '/';