如何对包含的文件(例如 .css)使用相对路径

问题描述

我有一个 header.php 文件，其中包含一个 .css 文件链接.

I have a header.php file which contains a .css file link.

当我将 header.php 包含"到不同文件夹中的另一个 php 文件中时，该 header.php 的 .css href 是对于新的 php 文件不正确.

When I "include" header.php into another php file in different folder, the .css href for that header.php is not correct for the new php file.

我应该如何在我的 .css 文件中声明 href 以包含适用于任何文件夹的 header.php那个php文件在里面?

How should I declare the href in my .css file to include the header.php with it that will be correct for any folder that php file is in?

推荐答案

这是许多大型应用程序在安装时尝试设置根 URI"常量/变量的原因.

This is a reason many large applications will try to set a 'root URI' constant/variable when installing.

如果您的应用程序位于域/子域的根目录中，/css/style.css 将起作用，但如果不是(/appName/css/style.css)

While /css/style.css will work if your application is located in the root directory of the domain/subdomain, it will fail if it isn't (/appName/css/style.css)

将绝对 URI 与其他配置常量/变量一起存储到根"脚本文件夹，构建绝对链接变得轻而易举.

Store the absolute URI to the 'root' script folder along with other configuration constants/variables, and building absolute links becomes a breeze.

define( 'SCRIPT_ROOT', 'http://localhost/yourApplication' );
// ...
echo '<link rel="stylesheet" type="text/css" href="'.SCRIPT_ROOT.'/css/style.css">';

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