Kirby\Cli\Util::download PHP Метод

    public static function download($url, $progress = null)
    {
        $curl = curl_init();
        curl_setopt($curl, CURLOPT_URL, $url);
        curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true);
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
        if (is_callable($progress)) {
            curl_setopt($curl, CURLOPT_BUFFERSIZE, 128);
            curl_setopt($curl, CURLOPT_NOPROGRESS, false);
            curl_setopt($curl, CURLOPT_PROGRESSFUNCTION, $progress);
        }
        $content = curl_exec($curl);
        $error = curl_error($curl);
        curl_close($curl);
        if (!empty($error)) {
            throw new RuntimeException('Download failed: ' . $url);
        }
        return $content;
    }