function get_data($url)
{
$of = $_GET['of'];
$ch = curl_init();
$timeout = 5;
curl_setopt($ch,CURLOPT_URL,$url);
curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);
curl_setopt($ch,CURLOPT_CONNECTTIMEOUT,$timeout);
curl_setopt($ch,CURLOPT_POSTFIELDS,'barkod=' . $of);
$data = curl_exec($ch);
curl_close($ch);
return $data;
}