在.htaccess文件中操纵PHP响应的标头？

Question

Is it possible to add headers (defined in a .htaccess file) to a response generated by PHP? 是否可以将标头（在.htaccess文件中定义）添加到PHP生成的响应中？

I have the following .htaccess file in my that should add a Header TestHeader to each response delivered by my Apache Webserver: 我有以下.htaccess文件，该文件应向我的Apache Web服务器传递的每个响应中添加标头TestHeader ：

#<IfModule mod_headers.c>
#  Header unset X-Powered-By
  Header add TestHeader "It works."
#</IfModule>

I also have three additional files in that folder: 我在该文件夹中还有三个其他文件：

html.html
```
 <html>content</html> 
```

1.php

 <?php echo "<html>content php</html>";

2.php
```
 <?php header("TestHeader: Sent from PHP."); echo "<html>content php</html>"; 
```
- Requesting html.html returns the header TestHeader: "It works." 请求html.html返回标头TestHeader: "It works."
- Requesting 1.php does not return header TestHeader 请求1.php 不返回头TestHeader
- Requesting 2.php returns the header TestHeader: "Sent from PHP." 请求2.php将返回标头TestHeader: "Sent from PHP."

Is it somehow possible to manipulate the response header from PHP output using .htaccess directives? 是否可以使用.htaccess指令从PHP输出操作响应标头？

EDIT: PHP runs as FastCGI on the server. 编辑：PHP在服务器上作为FastCGI运行。

Answer 1

You can use SetEnvIf and then add the header accordingly: 您可以使用SetEnvIf，然后相应地添加标题：

SetEnvIf Request_URI "\.php$" phpfile
Header set TestHeader "Sent from PHP" env=phpfile

If the request URL ends with the extension ".php", then SetEnvIf will set a variable "phpfile". 如果请求URL以扩展名“ .php”结尾，则SetEnvIf将设置变量“ phpfile”。 If the variable "phpfile" exists only then TestHeader: Sent from PHP will be sent as a response header. 如果仅存在变量“ phpfile”，则将TestHeader: Sent from PHP作为响应头发送。 You can use this logic for as many extensions or URL patterns as you need. 您可以根据需要将这种逻辑用于任意数量的扩展名或URL模式。

Edit: If the header already exists ie it is sent from PHP, then using Header Set apache will replace it by the new value. 编辑：如果标题已经存在，即它是从PHP发送的，则使用Header Set apache将其替换为新值。

Answer 2

This is likely to be a problem with your Apache version and the fact that PHP runs as FastCGI. 这可能是您的Apache版本和PHP作为FastCGI运行的问题。

In Apache 2.2.X there was a bug: https://bz.apache.org/bugzilla/show_bug.cgi?id=49308 在Apache 2.2.X中存在一个错误： https ：//bz.apache.org/bugzilla/show_bug.cgi？id = 49308

I found a couple of other posts that propose to use the always condition to fix the problem: 我发现了其他一些建议使用always条件解决该问题的帖子：

Header always add TestHeader "It works."

Also see: 另请参阅：

在.htaccess文件中操纵PHP响应的标头？

问题描述

2 个解决方案

解决方案1
3 2016-07-01 13:18:44

解决方案2
2 已采纳 2016-07-02 10:15:37

在.htaccess文件中操纵PHP响应的标头？

问题描述

2 个解决方案

解决方案1 3 2016-07-01 13:18:44

解决方案2 2 已采纳 2016-07-02 10:15:37

解决方案1
3 2016-07-01 13:18:44

解决方案2
2 已采纳 2016-07-02 10:15:37