我正在用PHP执行cURL发布，并尝试减少我正在使用的带宽量。 我不需要从发布的远程站点返回任何东西，因为我控制了远程站点的所有跟踪以确保发布成功在接收端完成。

我的问题是...

当您将CURLOPT_NOBODY设置为TRUE时：

它是否仍会下载主体，而不会将其退还给您？

要么

它会忽略主体，根本不下载吗？

从curl_setopt上的PHP手册(强调我的)：

CURLOPT_NOBODY: TRUE to exclude the body from the output. Request method is then set to HEAD. Changing this to FALSE does not change it to GET.

因此，答案是否定的。 然后，它不会下载主体，因为它是一个HTTP HEAD请求：

The HEAD method is identical to GET except that the server MUST NOT return a message-body in the response. The metainformation contained in the HTTP headers in response to a HEAD request SHOULD be identical to the information sent in response to a GET request. This method can be used for obtaining metainformation about the entity implied by the request without transferring the entity-body itself. This method is often used for testing hypertext links for validity, accessibility, and recent modification.