Code File Upload Resume to Bullhorn PHP API

curl-bullhorn-apI.php

<?php 

  // File Upload Resume
  $data = "file/Candidate/".$candidate->changedEntityId."/raw?externalID=UserHeadshot&fileType=CV&type=CV&BhRestToken=".$token;
  $fileName = $_FILES['file']['name'];
  $filePath = $_FILES['file']['tmp_name'];
  $post = file_get_contents(''.$filePath.'');

  $eol = "\r\n";
  $separator = ''.md5(microtime()).'';
  $requestBody = '';
  $requestBody .= '--'.$separator. $eol;
  $requestBody .= 'Content-Disposition: form-data; name="resume"; filename="'.$fileName.'"'. $eol;
  $requestBody .= 'Content-Length: "'.strlen($post).'"'. $eol;
  $requestBody .= 'Content-Type: text/html'.$eol;
  $requestBody .= 'Content-Transfer-Encoding: binary'. $eol. $eol;
  $requestBody .= ''.$post.''. $eol;
  $requestBody .= '--'.$separator.'--'. $eol . $eol;

  $curl = curl_init();
  curl_setopt($curl, CURLOPT_URL, $apilink.$data);
  curl_setopt($curl, CURLOPT_CUSTOMREQUEST, "PUT");
  curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
  curl_setopt($curl, CURLOPT_HTTPHEADER, array('Content-type: multipart/form-data; boundary='.$separator.''));
  curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
  curl_setopt($curl, CURLOPT_FOLLOWLOCATION, TRUE);
  curl_setopt($curl, CURLOPT_POSTFIELDS, $requestBody);
  $response = curl_exec($curl);
  curl_close($curl);