通过PHP呈现纯文本 [英] Rendering plain text through PHP

问题描述

出于某种原因，我想通过PHP脚本提供我的robots.txt。我设置了apache，以便robots.txt文件请求（实际上是所有文件请求）来到一个PHP脚本。

我用来渲染robots.txt的代码是：

  echoUser-agent：wget\\\
; 
回显Disallow：/ \\\
; 
  

然而，它并没有处理换行符。如何正确地服务robots.txt，以便搜索引擎（或任何客户端）正确地看到它？我需要为txt文件发送一些特殊的头文件吗？

编辑1：

现在我有以下code：

  header（Content-Type：text / plain）; 
 echoUser-agent：wget\\\
; 
回显Disallow：/ \\\
; 
  

仍然不显示换行符（参见 http://sarcastic-quotes.com/robots.txt ）。

编辑2： / h2>

有些人提到它很好，没有在浏览器中显示。只是好奇这个如何正确显示： http://en.wikipedia.org/robots.txt

编辑3：

我通过wget下载了mine和wikipedia，并且看到了这个： p>

  $文件en.wikipedia.org/robots.txt 
 en.wikipedia.org/robots.txt：UTF-8 Unicode英文文本
 
 $文件sarcastic-quotes.com/robots.txt 
 sarcastic-quotes.com/robots.txt：ASCII文本
  

总结：

主要问题是我没有设置标题。但是，还有一个内部错误，它将Content-Type设置为html。 （这是因为我的请求实际上是通过内部代理服务的，但那是另一个问题）。

有些浏览器不显示换行符的注释只有一半，正确 - >现代浏览器正确显示换行符，如果内容类型是文本/纯文本。我选择的是与真实问题紧密匹配的答案，并且没有发现上述稍有误导性的误解。谢谢大家的帮助和时间！

谢谢

JP

<您忘记将输出的内容类型设置为 text / plain ：

解决方案

  header（Content-Type：text / plain）; 
  

您的输出可能以HTML格式发送，其中的换行符被截断为一个空格，显示换行符，您需要< br /> 标记。

For some reason, I want to serve my robots.txt via a PHP script. I have setup apache so that the robots.txt file request (infact all file requests) come to a single PHP script.

The code I am using to render robots.txt is:

echo "User-agent: wget\n";
echo "Disallow: /\n";

However, it is not processing the newlines. How to server robots.txt correctly, so search engines (or any client) see it properly? Do I have to send some special headers for txt files?

EDIT 1:

Now I have the following code:

header("Content-Type: text/plain");
echo "User-agent: wget\n";
echo "Disallow: /\n";

which still does not display newlines (see http://sarcastic-quotes.com/robots.txt ).

EDIT 2:

Some people mentioned its just fine and not displayed in browser. Was just curious how does this one display correctly: http://en.wikipedia.org/robots.txt

EDIT 3:

I downloaded both mine and wikipedia's through wget, and see this:

$ file en.wikipedia.org/robots.txt
en.wikipedia.org/robots.txt: UTF-8 Unicode English text

$ file sarcastic-quotes.com/robots.txt
sarcastic-quotes.com/robots.txt: ASCII text

FINAL SUMMARY:

Main issue was I was not setting the header. However, there is another internal bug, which is making the Content-Type as html. (this is because my request is actually served through an internal proxy but thats another issue).

Some comments that browsers don't display newline were only half-correct -> modern browsers correctly display newline if content-type is text/plain. I am selecting the answer that closely matched the real problem and was void of the above slightly misleading misconception :). Thanks everyone for the help and your time!

thanks

JP

解决方案

Yes, you forgot to set the Content Type of your output to text/plain:

header("Content-Type: text/plain");

Your output is probably being sent as HTML, where a newline is truncated into a space, and to actually display a newline, you would need the <br /> tag.

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