Upload file to zendesk with PHP

file-upload.php

<?php

$url = "http://skipjack.zendesk.com/uploads.xml?filename=dropbox1.html";
$file = fopen("dropbox1.html", "r");
$size = filesize($file);
$header= array('Content-type:  application/binary' );
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_USERPWD, "skip@youremail.net:passwrod");
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_POST ,1);
curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
curl_setopt($ch, CURLOPT_POSTFIELDS ,$file);
curl_setopt($ch, CURLOPT_POST ,1);
curl_setopt($ch, CURLOPT_INFILE, $file);
curl_setopt($ch, CURLOPT_INFILESIZE, strlen($file));
curl_setopt($ch, CURLOPT_FOLLOWLOCATION ,1);
curl_setopt($ch, CURLOPT_HEADER ,1); // DO NOT RETURN HTTP HEADERS 
curl_setopt($ch, CURLOPT_RETURNTRANSFER ,1); // RETURN THE CONTENTS OF THE CALL 
$token = curl_exec($ch);

?>

In 2023, the above code was not really working for me... it was almost working, uploading something, and returning JSON, but the uploaded image was blank. In the end, this is the only combination of CURL options that would work for me:

$fileName = 'test.png';
$filePath = 'test.png';

$url = 'https://test.zendesk.com/api/v2/uploads.json?filename=' . urlencode($fileName);
$file = fopen($filePath, "r");
$mimeContentType = mime_content_type($file);
$size = filesize($filePath);


$ch = curl_init($url);
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER ,true);
curl_setopt($ch, CURLOPT_POST ,true);
curl_setopt($ch, CURLOPT_POSTFIELDS, file_get_contents($filePath));
curl_setopt($ch, CURLOPT_HTTPHEADER, array("Content-type: {$mimeContentType}"));
curl_setopt($ch, CURLOPT_VERBOSE, true);
curl_setopt($ch, CURLOPT_USERPWD, "test@test.com/token:XXXXXXXXXXXXXXXXXXX");
$output = curl_exec($ch);
$code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
fclose($file);
curl_close($ch);