CURLOPT_NOBODY选项，返回HTTP意外code 200上不存在的文件 [英] CURLOPT_NOBODY option returns unexpected HTTP code 200 on non-existing file

问题描述

我有一个服务器，名为 install64-7 在这个例子中，我将访问检查zip文件是否存在等，这是不是在服务器上。下面的PHP code返回HTTP返回code 200 即使zip文件不存在于服务器上 install64-7 。

I have a server, called install64-7 in this example which I will access to check for the existance of a zip file, which is not on server. The following PHP code returns the HTTP returncode 200 even if the zip file does not exist on the server install64-7.

$srcPath = "http://install64-7/TestApp.zip";
$ch = curl_init( $srcPath );
curl_setopt( $ch, CURLOPT_NOBODY, true );
curl_exec( $ch );
$retcode = curl_getinfo( $ch, CURLINFO_HTTP_CODE );
curl_close( $ch );
unset( $ch );
var_dump($retcode);
exit;

在我的情况下删除选项 CURLOPT_NOBODY ，要求给出了一个 404 ！看到第二个请求截图

In case I remove the option CURLOPT_NOBODY, the request gives a 404! see screenshot for second request

$srcPath = "http://install64-7/TestApp.zip";
$ch = curl_init( $srcPath );
//curl_setopt( $ch, CURLOPT_NOBODY, true );
curl_exec( $ch );
$retcode = curl_getinfo( $ch, CURLINFO_HTTP_CODE );
curl_close( $ch );
unset( $ch );
var_dump($retcode);
exit;

这怎么可能，我缺少什么？这是什么魔法有关的选项 CURLOPT_NOBODY ？
感谢您的帮助。

How is this possible, what am I missing? What is this sorcery about the option CURLOPT_NOBODY? Thank you for any help

推荐答案

CURLOPT_NOBODY设置为TRUE发出HTTP HEAD请求，相比于正常的HTTP GET。

CURLOPT_NOBODY set to TRUE makes a HTTP HEAD request, as compared to the "normal" HTTP GET.

如果你因为这仅仅是因为服务器决定有不同的反应不同repsonse code - 虽然它不应该根据HTTP规范

If you get a different repsonse code because of that it is simply because the server decides to respond differently - although it shouldn't according to the HTTP spec.

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