CURLOPT_NOBODY选项在不存在的文件上返回意外的HTTP代码200 [英] CURLOPT_NOBODY option returns unexpected HTTP code 200 on non-existing file

问题描述

我有一个服务器，在这个例子中， install64-7 ，我将访问检查是否存在一个zip文件，而不是在服务器上。以下PHP代码返回HTTP返回码 200 ，即使该zip文件在服务器 install64-7 上不存在。

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;

如果我删除了 CURLOPT_NOBODY 选项， code> 404 ！请参阅第二个请求的屏幕截图

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，我失踪了什么？这个术语是关于选项 CURLOPT_NOBODY 的吗？
谢谢任何帮助

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会产生HTTP HEAD请求， HTTP GET。

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

如果你得到一个不同的repsonse代码，因为它只是因为服务器决定不同的响应 - 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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