book_admin/application/common/constants/ErrorCode.php

<?php
/**
 * Created by PhpStorm.
 * User: Bear
 * Date: 2018/10/24
 * Time: 下午4:33
 */

namespace app\common\constants;

class ErrorCode
{
    const SUCCESS = 0;
    const PARAMS_ERROR_EMPTY = 1;//参数为空
    const PARAMS_ERROR_TYPE = 2;//参数数据类型错误
    const PARAMS_ERROR_INVALID = 3;//参数无效
    const DB_ERROR_UPDATE = 4;//更新错误
    const DB_ERROR_SELECT = 5;//查询无结果
    const DB_ERROR_TIMEOUT = 6;//查询超时
    const API_ERROR = 7;//调用api返回错误
    const EXCEPTION = 8;//程序异常
}