文档根PHP [英] Document Root PHP

问题描述

$ b

  $ _ SERVER [DOCUMENT_ROOT] 
  
 
 
。 
 $ b 
例如。如果当前文档是： 
 
 
 文件夹/文件夹/文件夹/ index.php 
  
我可以使用（在HTML中）从roort开始： 
 
 
  /somedoc.html 
  
并且在PHP中执行相同的操作我将不得不使用：  
 
 
  $ _ SERVER [DOCUMENT_ROOT]。 /somedoc.html; 
  
这是正确的吗？有没有更简单的方法来做到这一点？
      ;？php echo $ _SERVER ['DOCUMENT_ROOT']。'/ hello.html';？>> go with php< / a> 
< br /> 
< a href =/ hello.html>转至html< / a> 
  

亲自尝试一下，发现它们不完全一样。

$ _ SERVER ['DOCUMENT_ROOT']呈现一个实际的FILE PATH（在我的计算机上运行，​​因为它是自己的服务器，c：/ wamp / www /

HTML的/呈现服务器url的根，在我的情况下，本地主机/

但c：/wamp/www/hello.html和localhost / hello.html是实际上是同一个文件

Just to confirm, is using:

$_SERVER["DOCUMENT_ROOT"]

the same as using: /

in HTML.

Eg. If current document is:

folder/folder/folder/index.php

I could use (in HTML) to start at the roort:

/somedoc.html

and to do the same in PHP I would have to use:

$_SERVER["DOCUMENT_ROOT"] . "/somedoc.html";

Is that correct? Is there an easier way to do it?

解决方案

 <a href="<?php echo $_SERVER['DOCUMENT_ROOT'].'/hello.html'; ?>">go with php</a>
<br />
<a href="/hello.html">go to with html</a>

Try this yourself and find that they are not exactly the same.

$_SERVER['DOCUMENT_ROOT'] renders an actual FILE PATH (on my computer running as it's own server, c:/wamp/www/

HTML's / renders the root of the server url, in my case, localhost/

But c:/wamp/www/hello.html and localhost/hello.html are in fact the same file

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