baseXX/public/index.php

<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006-2016 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Author: honor <rongyao_xu@163.com>
// +----------------------------------------------------------------------
// [ 应用入口文件 ]
// 定义应用目录

// 检测PHP环境
if (version_compare(PHP_VERSION, '5.5.9', '<')) die('require PHP > 5.5.9 !');
//error_reporting(E_ALL ^ E_NOTICE);//显示除去 E_NOTICE 之外的所有错误信息
error_reporting(E_ERROR | E_WARNING | E_PARSE);//报告运行时错误
//检测是否已安装CrmEb系统
if (file_exists("./install/") && !file_exists("./install/install.lock")) {
    if ($_SERVER['PHP_SELF'] != '/index.php') {
        header("Content-type: text/html; charset=utf-8");
        exit("请在域名根目录下安装,如:<br/> www.xxx.com/index.php 正确 <br/>  www.xxx.com/www/index.php 错误,域名后面不能圈套目录, 但项目没有根目录存放限制,可以放在任意目录,apache虚拟主机配置一下即可");
    }
    header('Location:/install/index.php');
    exit();
}

define('APP_PATH', __DIR__ . '/../application/');
//静态文件目录
define('PUBILC_PATH', '/');
//常量文件
require __DIR__ . '/../application/constant.php';
// 加载框架引导文件
require __DIR__ . '/../thinkphp/start.php';