gistfile1.php

<?php
public function executeVkUploadFile(sfWebRequest $request)
  {
		$this->forward404Unless($request->isXmlHttpRequest() && $request->isMethod(sfRequest::POST));
		$this->forward404Unless($t_participant = Doctrine::getTable('TParticipant')->find($request->getParameter('id')));
		$url = $request->getParameter('url');
		$file = $t_participant->getResizedPath();
		
		$curl = new cURL($url);
		$response = $curl->post([ 'photo' => '@' . $file ]);
		
		return $this->renderText($response);
	}