APP_DEBUG 关闭 后页面一直显示 "页面错误",

通过查看Apache日志 发现在
PHP Fatal error: Call to undefined function Home\\Controller\\checkmobile() in D:\\wamp\\www\\work\\jpsdk\\Home\\Controller\\CommonController.class.php on line 33, referer: http://weishang.test.com/work/jpsdk/shop/index.html

有可能是没有加载 Common/Common/function.php的函数.
或者是我分离函数文件加载写法有错误?
function.php我是这样写的
<?php
include_once('function_base.php');
include_once('function_cutstr.php');
include_once('function_sms.php');
include_once('function_types.php');
?>

求指教