I am trying to post an image with cURL in PHP using multipart/form-data header since API that I am sending to is expecting image to be sent as multi-part form.
I don't have problems talking to the API with other requests; only posting an image is an issue.
I am using this form on client side:
<form action="http://myServerURL" method="POST" enctype="multipart/form-data">
<input type="file" name="file" />
<input type="Submit">
</form>
and this is the server I am posting to (here I am trying to post this data forward to an API):
$ch = curl_init($url);
curl_setopt ($ch, CURLOPT_POST, 1);
curl_setopt ($ch, CURLOPT_POSTFIELDS, $imgRawData); // <-- raw data here hm?
curl_setopt( $ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt ($ch, CURLOPT_COOKIEFILE, $cookieJar);
curl_setopt( $ch, CURLOPT_HEADER, 1);
curl_setopt($ch, CURLINFO_HEADER_OUT, 1); <-- using this as I wanted to check if HTTPHEADER is set
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: multipart/form-data')); <-- setting content-type header?
curl_setopt( $ch, CURLOPT_RETURNTRANSFER, 1);
// i get response from the server
$response = curl_exec( $ch );
// with this I can check what kind of content type the last request had?
$requestContentType = curl_getinfo($ch,CURLINFO_CONTENT_TYPE);
echo "<br>request Content Type was:".$requestContentType."<br>";
curl_close($ch);
echo "<br><b>SERVER POST IMAGE RESPONSE:</b><br>";
echo $response;
With the code below I am able to see my request headers:
curl_setopt($ch, CURLOPT_HEADER, 1);
curl_setopt($ch, CURLINFO_HEADER_OUT, true);
var_dump(curl_getinfo($ch));
The content-type in request-headers is shown correctly now. But it seems the image is not send correctly as API would expect. Unfortunately I don't have access to the API...
Any help appreciated, thank you
As of PHP 5.6 @$filePath
will not work in CURLOPT_POSTFIELDS
without CURLOPT_SAFE_UPLOAD
being set and it is completely removed in PHP 7. You will need to use a CurlFile object, RFC here.
$fields = [
'name' => new \CurlFile($filePath, 'image/png', 'filename.png')
];
curl_setopt($resource, CURLOPT_POSTFIELDS, $fields);