eduVPN / vpn-server-api

    /** @var int */

    private $prefix;

    public function __construct($cidrIp)

    {

        // must be of form IP/PREFIX

        if (1 !== substr_count($cidrIp, '/')) {

            throw new InvalidArgumentException('not in CIDR format');

        }

        list($ip, $prefix) = explode('/', $cidrIp);

        // check IP

        self::validateIP($ip);

        $this->ip = $ip;

        // check prefix

        if (!is_numeric($prefix) || 0 > $prefix || 32 < $prefix) {

            throw new InvalidArgumentException('invalid prefix, must be >0 and <32');

        }

        $this->prefix = intval($prefix);

    }

    public function getRange()

    {

    /** @var int */

    private $prefix;

    public function __construct($prefixIp)

    {

        // must be of form IP/PREFIX

        if (1 !== substr_count($prefixIp, '/')) {

            throw new InvalidArgumentException('not a prefix');

        }

        list($ip, $prefix) = explode('/', $prefixIp);

        // check IP

        self::validateIP($ip);

        $this->ip = inet_ntop(inet_pton($ip));

        // check prefix

        if (!is_numeric($prefix) || 0 > $prefix || 64 < $prefix) {

            throw new InvalidArgumentException('invalid prefix, must be <= /64');

        }

        $this->prefix = intval($prefix);

    }

    public function getRange()

    {