在cURL中更改上传文件的名称？ [英] Change name of upload file in cURL?

问题描述

我想使用cURL上传文件。因为cURL需要文件的完整路径，所以这里是我的代码：

I want to upload a file using cURL. Since cURL requires full path to the file so here is my code:

curl_setopt($ch, CURLOPT_POSTFIELDS, array("submit" => "submit", "file" => "@path/to/file.ext"));
curl_exec($ch);

$ b < b
$ b

However cURL will also post this full path of the file in the request header:

Content-Disposition：form-data; name =file; filename =/ path / to / file.ext

Content-Disposition: form-data; name="file"; filename="/path/to/file.ext"

但我想要的只是

Content-Disposition：form-data; name =file; filename =file.ext

Content-Disposition: form-data; name="file"; filename="file.ext"

所以我将代码更改为

curl_setopt($ch, CURLOPT_POSTFIELDS, array("submit" => "submit", "file" => "@file.ext"));
chdir("path/to"); # change current working directory to where the file is placed
curl_exec($ch);
chdir("path"); # change current working directory back

然后cURL只是抛出一个错误信息

And then cURL simply throws an error message

无法打开文件file.ext

couldn't open file "file.ext"

推荐答案

新方法（自PHP 5.5开始） href =http://php.net/curlfile =nofollow> CURLFile ：

New method (since PHP 5.5) using CURLFile:

$file = new CURLFile('path/to/file.ext');
$file->setPostFilename('file.ext');

使用它几乎相同：

"file" => $file

旧方法：

而不是

"file" => "@path/to/file.ext"

你可以告诉cURL使用另一个文件名： p>

you can tell cURL to use another filename:

"file" => "@path/to/file.ext; filename=file.ext"

path / to / file.ext 作为文件源，但 file.ext 为filename。

That way it will use path/to/file.ext as file source, but file.ext as filename.

你需要一个非常绝对的路径，所以你可能缺少一个领先的 / ： / path /to/file.ext 。因为你使用PHP，总是做一个 realpath（）：

You'll need a very absolute path though, so you're probably missing a leading /: /path/to/file.ext. Since you're using PHP, always do a realpath():

"file" => '@' . realpath($pathToFile) . '; filename=' . basename($pathToFile);

或类似的东西。

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