$authorization = "Authorization: Bearer XXXXXXXXXXXXXXXX";
$local_file = 'Report/AzureReport.csv';
$fp = fopen ($local_file, 'w+');
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/Csv', $authorization));
curl_setopt($ch, CURLOPT_FILE, $fp);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($ch, CURLOPT_ENCODING, "");
curl_exec($ch);
if (!curl_errno($ch))
{
  switch ($http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE))
  {
    case 200:  echo "ok";# OK
     break;
    default:
     echo 'Unexpected HTTP code: ', $http_code, "n";
 }
 }else{
 echo "error:".curl_errno($ch);
}
curl_close($ch);
fclose($fp);


output:
error:23