PHP cURL: how to set body to binary data? - php

Question

I'm using an API that wants me to send a POST with the binary data from a file as the body of the request. How can I accomplish this using PHP cURL?
The command line equivalent of what I'm trying to achieve is:
curl --request POST --data-binary "#myimage.jpg" https://myapiurl

Answer 1

You can just set your body in CURLOPT_POSTFIELDS.
Example:
$ch = curl_init();
curl_setopt($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);
Taken from here
Of course, set your own header type, and just do file_get_contents('/path/to/file') for body.

Answer 2

This can be done through CURLFile instance:
$uploadFilePath = __DIR__ . '/resource/file.txt';
if (!file_exists($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);
See - https://github.com/andriichuk/php-curl-cookbook#upload-file

Answer 3

to set body to binary data and upload without multipart/form-data, the key is to cheat curl, first we tell him to PUT, then to 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);
credits: How to POST a large amount of data within PHP curl without memory overhead?

Answer 4

Try this:
$postfields = array(
'upload_file' => '#'.$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);

Answer 5

Below solution worked fine for me.
$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);
refered: curl to php-curl

Answer 6

You need to provide appropriate header to send a POST with the binary data.
$header = array('Content-Type: multipart/form-data');
curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
curl_setopt($resource, CURLOPT_POSTFIELDS, $arr_containing_file);
Your $arr_containing_file can for example contain file as expected (I mean, you need to provide appropriate expected field by the API service).
$arr_containing_file = array('datafile' => '#inputfile.ext');