function post($url, $postData = '', $timeout = 5)​{        $ch = curl_init();        curl_setopt ($ch, CURLOPT_URL, $url);        curl_setopt ($ch, CURLOPT_POST, 1);        if ($postData != '')        {            curl_setopt($ch, CURLOPT_POSTFIELDS, $postData);        }        curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);        curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout);        curl_setopt($ch, CURLOPT_HEADER, false);        $result = curl_exec($ch);        curl_close($ch);        return $result;}