PHP - 相对路径“需要"

问题描述

我的目录结构如下:

blog -> admin -> index.php
blog.php
db.php
functions.php

我一直试图在 admin/index.php 中include(require，真的)blog.php代码>，但面临很多错误.我正在学习 PHP 课程，讲师成功地完成了同样的事情.

I have been trying to include (require, really) blog.php in the admin/index.php, but facing lots of errors. I'm following a PHP course, and the instructor does the same thing successfully.

admin/index.php:

admin/index.php:

require "../blog.php";

反过来，它的目录中还需要两个文件.

which, in turn, requires two more files in its directory.

require "db.php";
require "functions.php";

推荐答案

如果你发现相对包含路径没有按预期工作，一个快速的解决方法是在前面加上 __DIR__您尝试包含的路径.

If you find that relative include paths aren't working as expected, a quick fix is to prepend __DIR__ to the front of the path you're trying to include.

require __DIR__ . "/../blog.php";

它相当干净，您不需要修改包含路径或工作目录.

It's reasonably clean, and you don't need to modify the include path or working directory.

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