我正在使用一个 API，它希望我发送一个 POST，其中包含来自文件的二进制数据作为请求的主体。如何使用 PHP cURL 完成此操作？
与我想要实现的命令行等效的是：
curl --request POST --data-binary "@myimage.jpg" https://myapiurl
【问题讨论】：
以下解决方案对我来说效果很好。
$ch = curl_init();
$post_url = "https://api_url/"
curl_setopt($ch, CURLOPT_URL, $post_url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'PUT');
$post = array(
'file' => '@' .realpath('PATH_TO_DOWNLOADED_ZIP_FILE')
);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post);
$headers = array();
$headers[] = 'Authorization: Bearer YOUR_ACCESS_TOKEN';
$headers[] = 'Content-Type: application/x-www-form-urlencoded';
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
$result = curl_exec($ch);
if (curl_errno($ch)) {
echo 'Error:' . curl_error($ch);
}
curl_close($ch);
【讨论】：
设置body为二进制数据，不带multipart/form-data上传，关键是骗curl，先让他PUT，再POST：
<?php
$file_local_full = '/tmp/foobar.png';
$content_type = mime_content_type($file_local_full);
$headers = array(
"Content-Type: $content_type", // or whatever you want
);
$filesize = filesize($file_local_full);
$stream = fopen($file_local_full, 'r');
$curl_opts = array(
CURLOPT_URL => $url,
CURLOPT_RETURNTRANSFER => true,
CURLOPT_PUT => true,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_HTTPHEADER => $headers,
CURLOPT_INFILE => $stream,
CURLOPT_INFILESIZE => $filesize,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1
);
$curl = curl_init();
curl_setopt_array($curl, $curl_opts);
$response = curl_exec($curl);
fclose($stream);
if (curl_errno($curl)) {
$error_msg = curl_error($curl);
throw new \Exception($error_msg);
}
curl_close($curl);
学分：How to POST a large amount of data within PHP curl without memory overhead?
【讨论】：
这可以通过 CURLFile 实例来完成：
$uploadFilePath = __DIR__ . '/resource/file.txt';
if (!file_exists($uploadFilePath)) {
throw new Exception('File not found: ' . $uploadFilePath);
}
$uploadFileMimeType = mime_content_type($uploadFilePath);
$uploadFilePostKey = 'file';
$uploadFile = new CURLFile(
$uploadFilePath,
$uploadFileMimeType,
$uploadFilePostKey
);
$curlHandler = curl_init();
curl_setopt_array($curlHandler, [
CURLOPT_URL => 'https://postman-echo.com/post',
CURLOPT_RETURNTRANSFER => true,
/**
* Specify POST method
*/
CURLOPT_POST => true,
/**
* Specify array of form fields
*/
CURLOPT_POSTFIELDS => [
$uploadFilePostKey => $uploadFile,
],
]);
$response = curl_exec($curlHandler);
curl_close($curlHandler);
echo($response);
见 - https://github.com/andriichuk/php-curl-cookbook#upload-file
【讨论】：
试试这个：
$postfields = array(
'upload_file' => '@'.$tmpFile
);
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url.'/instances');
curl_setopt($ch, CURLOPT_POST, 1 );
curl_setopt($ch, CURLOPT_SAFE_UPLOAD, false);//require php 5.6^
curl_setopt($ch, CURLOPT_POSTFIELDS, $postfields);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$postResult = curl_exec($ch);
if (curl_errno($ch)) {
print curl_error($ch);
}
curl_close($ch);
【讨论】：
你可以在CURLOPT_POSTFIELDS中设置你的身体。
例子：
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "http://url/url/url" );
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1 );
curl_setopt($ch, CURLOPT_POST, 1 );
curl_setopt($ch, CURLOPT_POSTFIELDS, "body goes here" );
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: text/plain'));
$result=curl_exec ($ch);
取自here
当然，设置您自己的标题类型，只需为正文执行file_get_contents('/path/to/file')。
【讨论】：
postfields 发送文件，没想到这个！
您需要提供适当的标头来发送带有二进制数据的 POST。
$header = array('Content-Type: multipart/form-data');
curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
curl_setopt($resource, CURLOPT_POSTFIELDS, $arr_containing_file);
例如，您的 $arr_ contains_file 可以包含预期的文件（我的意思是，您需要通过 API 服务提供适当的预期字段）。
$arr_containing_file = array('datafile' => '@inputfile.ext');
【讨论】：