CURL on VULTR

    $query_string = "";
    if ($_REQUEST)
    {
        $kv = array();
        foreach ($_REQUEST as $key => $value)
        {
            $kv[] = stripslashes($key) . "=" . stripslashes($value);
        }
        $query_string = join("&", $kv);
        }
    if (!function_exists('curl_init'))
    {
        die('Sorry cURL is not installed!');
    }
    $url = 'https://api.vultr.com/v1/server/reboot';
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_POST, count($kv));
    curl_setopt($ch, CURLOPT_POSTFIELDS, $query_string);
    curl_setopt($ch, CURLOPT_HEADER, FALSE);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, FALSE);
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE);
    $result = curl_exec($ch);
    curl_close($ch);
    var_dump($result);