使用curl上传多个文件

如何使用数组上传多个文件CURLFile and curl_setopt?

使用数据数组，因为它会抛出错误（无法将数组转换为字符串）并且http_build_query上的数据会损坏CURLFile对象。

我必须上传的数据如下所示：

[
    'mode' => 'combine',
    'input' => 'upload',
    'format' => $outputformat,
    'files' => [
        [0] => CURLFile object,
        [1] => CURLFile object,
        [x] => ...
    ]
]

PHP 5.5+ 有一个不使用 CURLFile 创建文件的功能：curl_file_create.

您可以像这样上传多个文件：

<?php

$files = [
    '/var/file/something.txt',
    '/home/another_file.txt',
];

// Set postdata array
$postData = ['somevar' => 'hello'];

// Create array of files to post
foreach ($files as $index => $file) {
    $postData['file[' . $index . ']'] = curl_file_create(
        realpath($file),
        mime_content_type($file),
        basename($file)
    );
}

$request = curl_init('https://localhost/upload');
curl_setopt($request, CURLOPT_POST, true);
curl_setopt($request, CURLOPT_POSTFIELDS, $postData);
curl_setopt($request, CURLOPT_RETURNTRANSFER, true);
$result = curl_exec($request);

if ($result === false) {
    error_log(curl_error($request));
}

curl_close($request);

这将作为数组在服务器上接收file就像有张贴的表格一样，这是$_FILES:

Array
(
    [file] => Array
        (
            [name] => Array
                (
                    [0] => 1.txt
                    [1] => 2.txt
                )

            [type] => Array
                (
                    [0] => text/plain
                    [1] => text/plain
                )

            [tmp_name] => Array
                (
                    [0] => /private/var/folders/cq/7262ntt15mqdmylblg9p1wf80000gn/T/phpp8SsKD
                    [1] => /private/var/folders/cq/7262ntt15mqdmylblg9p1wf80000gn/T/php73ijEP
                )

            [error] => Array
                (
                    [0] => 0
                    [1] => 0
                )

            [size] => Array
                (
                    [0] => 6
                    [1] => 6
                )

        )

)

This is $_POST:

Array
(
    [somevar] => hello
)