PHP包括在子文件夹中不起作用(PHP include doen't work inside subfolders)

 在我的项目中，我将文件放在此文件夹中： 
 
 / test_server / 
 
 但是，我在/ test_server / css中为我的css文件制作组 
 
 问题是，我想为我的项目添加新模块，称为调度程序。 它有很多文件，所以我为这个模块创建了另一个文件夹，名为/ test_server / scheduler。 
 
 我有头文件包含我所有的导航菜单。 假设这个文件名为wrapper.php。 这个文件使用我的/ test_server / css /文件夹中的css 
 
<link rel="stylesheet" type="text/css" href="css/style-fit.css" />
 
 wrapper.php位于/ test_server / style-fit.css里面/ test_server / css / 
 
 接下来，我在/ test_server / scheduler /文件夹中有文件scheduler.php 
 
 我试过在里面使用$ _SERVER ['DOCUMENT_ROOT']， 
 
$path2 = $_SERVER['DOCUMENT_ROOT'];
$path2 .= "/test_server/wrapper.php";
include_once($path2);
 
 它可以包含wrapper.php，但是缺少style-fit.css的引用。 
 
 如何解决这个问题？ 
 
 谢谢。 

In my project, I put my file inside this folder:
 
/test_server/
 
But, I make group for my css file inside /test_server/css
 
The problem is, I want to add new module for my project, called scheduler. It has many files so I create another folder for this module, called /test_server/scheduler.
 
I have header file contains all my navigation menu. Let's say this file called wrapper.php. this file use css from my /test_server/css/ folder
 
<link rel="stylesheet" type="text/css" href="css/style-fit.css" />
 
wrapper.php located inside /test_server/ style-fit.css located inside /test_server/css/
 
Next, I have file scheduler.php inside /test_server/scheduler/ folder
 
I've tried using $_SERVER['DOCUMENT_ROOT'] inside it like this, 
 
$path2 = $_SERVER['DOCUMENT_ROOT'];
$path2 .= "/test_server/wrapper.php";
include_once($path2);
 
It can contain the wrapper.php, but, the references for style-fit.css is missing.
 
How to fix this problem? 
 
Thanks.

原文：https://stackoverflow.com/questions/26734097