/**
     * Get current proxy
     */
    public static function getProxy()
    {
        $last_line = file_get_contents(__DIR__ . '/../config/current_proxy_line.txt');
        $allow_next_line = false;

        $handle = fopen(__DIR__ . "/../config/proxy_list.txt", "r");

        $line_number = 0;
        //check any lines of file
        while (($line = fgets($handle))) {
            $line_number++;

            if (empty($line)) {
                $last_line = 0;
            }

            //bug fix with 0
            if ($last_line == 0) {
                $allow_next_line = true;
            }


            if ($allow_next_line) {
                return $line;
                file_put_contents(__DIR__ . '/../config/current_proxy_line.txt', $line_number);
                break;
            }

            //if line = current line from file
            if ($line_number == $last_line) {
                $allow_next_line = true;
            }
        }

        fclose($handle);
    }