如何在PHP中设置绝对包含路径? [英] How do I set an absolute include path in PHP?

问题描述

在HTML中，我可以找到文件，该文件从 Web服务器的根文件夹开始，方法是以"/"开头.喜欢:

In HTML, I can find a file starting from the web server's root folder by beginning the filepath with "/". Like:

/images/some_image.jpg

我可以将该路径放在任何子目录中的任何文件中，它将指向正确的图像.

I can put that path in any file in any subdirectory, and it will point to the right image.

使用PHP，我尝试了类似的操作:

With PHP, I tried something similar:

include("/includes/header.php");

...但这不起作用.

...but that doesn't work.

我认为此页面就是说我可以设置一次include_path，然后再设置一次.但是我不太了解语法.这两个示例都以句点开头，并显示:

I think that that this page is saying that I can set include_path once and after that, it will be assumed. But I don't quite get the syntax. Both examples start with a period, and it says:

使用.包含路径中的允许相对包含，因为这意味着当前目录.

Using a . in the include path allows for relative includes as it means the current directory.

相对包含正是我不想要想要的.

Relative includes are exactly what I don't want.

如何确保所有包含的内容都指向root/includes文件夹?(奖金:如果我要将该文件夹放置在公共目录之外怎么办?)

How do I make sure that all my includes point to the root/includes folder? (Bonus: what if I want to place that folder outside the public directory?)

我的开发文件当前由XAMPP/Apache提供.这会影响绝对路径吗? (我不确定生产服务器将是什么.)

My development files are currently being served by XAMPP/Apache. Does that affect the absolute path? (I'm not sure yet what the production server will be.)

我不知道我的问题在这里.我在上面引用的include_path正是我在寻找的东西，其语法并没有真正使人迷惑.我刚刚尝试过，效果很好.

I don't know what my problem was here. The include_path thing I referenced above was exactly what I was looking for, and the syntax isn't really confusing. I just tried it and it works great.

我想到的一件事是，有些人可能认为"/some/path"是绝对路径"，因为他们认为操作系统是Linux.该服务器是Windows，因此绝对路径必须以驱动器名称开头.

One thing that occurs to me is that some people may have thought that "/some/path" was an "absolute path" because they assumed the OS was Linux. This server is Windows, so an absolute path would have to start with the drive name.

无论如何，问题已解决！ :)

Anyway, problem solved! :)

推荐答案

我要做的是将config.php文件放在我的根目录中.该文件包含在我的项目中的所有PHP文件中.在该config.php文件中，然后执行以下操作；

What I do is put a config.php file in my root directory. This file is included by all PHP files in my project. In that config.php file, I then do the following;

define( 'ROOT_DIR', dirname(__FILE__) );

然后在所有文件中，我知道项目的根目录是什么，并且可以做类似的事情

Then in all files, I know what the root of my project is and can do stuff like this

require_once( ROOT_DIR.'/include/functions.php' );

对不起，没有其他积分可以进入公共目录；)这还带来了不幸的副作用，即您仍然需要相对路径才能找到config.php，但是使其余的内容变得更加容易.

Sorry, no bonus points for getting outside of the public directory ;) This also has the unfortunate side affect that you still need a relative path for finding config.php, but it makes the rest of your includes much easier.

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