设置响应状态代码 [英] Set Response Status Code

问题描述

我有一个API调用，我需要能够运行一些检查，并可能返回各种状态代码。我不需要自定义视图或任何东西，我只需要返回正确的代码。如果用户没有通过正确的凭据，我需要返回401状态。如果他们没有发送支持的请求格式，我需要返回400状态。

I have an API call for which I need to be able to run some checks and potentially return various status codes. I don't need custom views or anything, I just need to return the proper code. If the user hasn't passed proper credentials, I need to return a 401 status. If they haven't sent a supported request format, I need to return a 400 status.

因为它是一个API，我真正想做的是设置响应状态并退出一个简单的，愚蠢的消息为什么请求失败（可能使用退出）。刚好足以让工作完成，但我没能得到这个工作正常。我尝试使用PHP的 header（）和Cake的 $ this-> header（）控制器），但是虽然我得到退出消息，标题显示 200 OK 状态。

Because it's an API, all I really want to do is set the response status and exit with a simple, stupid message about why the request failed (probably using a exit). Just enough to get the job done, but I haven't been able to get this to work right. I've tried using PHP's header() and Cake's $this->header() (this is all in the controller), but although I get the exit message, the header shows a 200 OK status.

使用代码下面，我得到消息，但头没有设置。

Using the code below, I get the message, but the header isn't set. What am I missing?

  if( !$this->auth_api() ) {
    header( '401 Not Authorized' );
    exit( 'Not authorized' );
  }

推荐答案

PHP <= 5.3

header（） 函数具有状态代码的参数。

PHP <=5.3

The header() function has a parameter for status code. If you specify it, the server will take care of it from there.

header('HTTP/1.1 401 Unauthorized', true, 401);

PHP> = 5.4

查看Gajus answer： http://stackoverflow.com/a/14223222/362536

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