Curl POST attachment - php

Question

I need to attach a pdf file form local drive and post it to the API using PHP CURL.
Here is the RingCentral FaxOut API Documentation
$url = "https://service.ringcentral.com/faxapi.asp";
$data = array(
'Username' => 'XXXXXXXXX',
'Password' => 'XXXXXXXXX',
'Recipient' => 'XXXXXXXXXX|Navneet',
'Coverpage' => 'Default',
'Coverpagetext' => 'Testing Faxout API ',
'Resolution' => 'High',
"Sendtime" => date('d:m:y H:i:s'),
'Attachment' => file_get_contents(PATH_TO_FILE)
);
curl_setopt($ch,CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
curl_setopt($ch,CURLOPT_POST, count($data));
curl_setopt($ch,CURLOPT_POSTFIELDS, $data);
$result = curl_exec($ch);
API do not return anything in response. I think, I'm not sending the attachment properly. The attachment should be in binary stream. I tried base64_encode but no success.
As given in the Request body example, header for attachment should be like this
Content-Disposition: form-data; name="Attachment"; filename="C:\example.doc"
<Document content is here>
-----------------------------7d54b1fee05aa

Answer 1

You can POST anything to the api with CURL, $doc in my example is anything you want to post , it can be a json_encoded file , a base64_encoded image or pdf or anything else.
$baseUri = https://service.ringcentral.com/faxapi.asp;
$doc = file_get_contents(PATH_TO_FILE);
$ci = curl_init();
curl_setopt($ci, CURLOPT_URL, $baseUri);
curl_setopt($ci, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ci, CURLOPT_FORBID_REUSE, 0);
curl_setopt($ci, CURLOPT_CUSTOMREQUEST, 'POST');
curl_setopt($ci, CURLOPT_POSTFIELDS, $doc);
// also you can specify any specific header like this :
$h1['Content-Disposition'] = 'Content-Disposition'. ': ' . 'form-data'; // headers are key-value pairs right ?
curl_setopt($ci, CURLOPT_HTTPHEADER, array_values($h1)); // you can use this line for each header as a new key-value pair
$h2['name'] = 'name'. ': ' . 'Attachment';
curl_setopt($ci, CURLOPT_HTTPHEADER, array_values($h2));
$h3['filename'] = 'filename'. ': ' . 'C:\example.doc';
curl_setopt($ci, CURLOPT_HTTPHEADER, array_values($h3));
$response = curl_exec($ci);
**NOTE ** : its a good Idea to first of all check to see if your file_get_contents function works :
so in another php file check to see this :
echo file_get_contents(PATH_TO_FILE);
See if it echoes correctly

Answer 2

This is the function and how I generated the info for the request
function send_curl_request_with_attachment($method, $headers, $url, $post_fields) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,$url);
if($headers != "" && count($headers) > 0){
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
} curl_setopt($ch, CURLOPT_CUSTOMREQUEST, $method);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_fields);
curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
curl_setopt($ch, CURLOPT_VERBOSE,true);
$result = curl_exec($ch);
curl_close($ch);
return $result;}
$token_slams = "Authorization: Bearer " . $access_token;
$authHeader = array(
$token_slams,
'Accept: application/form-data');
$schedule_path ='../../documents/' . $docs_record["document"];
$cFile = curl_file_create($schedule_path);
$post = array(
'old_record' => $old_record,
'employer_number' => $employer_number,
'payment_date' => $payment_date,
'fund_year' => $fund_year,
'fund_month' => $fund_month,
'employer_schedule'=> $cFile
);
send_curl_request_with_attachment("POST", $authHeader, $my_url, $post);