How to get a list of group members in OK via API?

Question

PHP

Good day!

I ask for advice and I will be grateful for it. Task: get a list of group members in classmates via API. All free parsers have a limit on the number of parsed participants. It seems that there is an option to make your application OK and receive lists of group members through the API. Is it possible (preferably without deep knowledge of PHP)))?
After all, there is

Answer 1

function arInStr($array)
{
    ksort($array);
    $string = "";
    foreach ($array as $key => $val)
    {
        if (is_array($val))
        {
            $string .= $key . "=" . arInStr($val);
        }
        else
        {
            $string .= $key . "=" . $val;
        }
    }
    return $string;
}

function postUrl($url, $type = "GET", $params = array(), $timeout = 15, $image = false, $decode = true)
{
    if ($ch = curl_init())
    {
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_HEADER, false);

        if ($type == "POST")
        {
            curl_setopt($ch, CURLOPT_POST, true);


            if ($image)
            {
                curl_setopt($ch, CURLOPT_POSTFIELDS, $params);
            }

            elseif ($decode)
            {
                curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($params));
            }

            else
            {
                curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($params));
            }
        }

        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
        curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows; U; Windows NT 5.1; ru; rv:1.9.2.12) Gecko/20101026 Firefox/3.6.12');
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
        $data = curl_exec($ch);
        curl_close($ch);

        // Еще разок, если API завис
        if (isset($data['error_code']) && $data['error_code'] == 5000)
        {
            $data = getUrl($url, $type, $params, $timeout, $image, $decode);
        }
        return $data;
    }
    else
    {
        return "{}";
    }
}

function getOk($access_token,
               $application_secret_key,
               $params,
               $timeout = 15,
               $image = false,
               $decode = true,
               $siG = true,
               $url = 'https://api.ok.ru/fb.do')
{
    if ($siG != false)
    {
        $sig = md5(arInStr($params) . md5("{$access_token}{$application_secret_key}"));
        $params["sig"] = $sig;
        $params["access_token"] = $access_token;
        $result = json_decode(postUrl("https://api.ok.ru/fb.do", "POST", $params, $timeout, $image, $decode), true);
    }
    else
    {
        $result = json_decode(postUrl($url, "POST", $params, $timeout, $image, $decode), true);
    }
    return $result;
}


$params = array(
    "application_key" => $application_key,
    "application_id" => $application_id,
    "application_secret_key" => $secret_session_key,
    "format" => "json",
    "uid" => $groupId,
    "method" => "group.getMembers",
);
$res = getOk($access_token, $application_secret_key, $params, 15, false);