dm-v2.com/Application/Common/Conf/debug.php

<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006-2014 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------

/**
 * ThinkPHP 默认的调试模式配置文件
 */

// 调试模式下面默认设置 可以在应用配置目录下重新定义 debug.php 覆盖
return array(
    'LOG_RECORD' => true, // 进行日志记录
    'LOG_EXCEPTION_RECORD' => true, // 是否记录异常信息日志
    'LOG_LEVEL' => 'EMERG,ALERT,CRIT', // 允许记录的日志级别
);