error method validateInputs

[sanchezzzhak]

replace

    /**
     * Validate IP address and network.
     * @param string $ip IP address in dotted quads format.
     * @param int $network_size Network.
     * @throws Exception ip or network size not valid
     */
    private function validateInputs( $ip, $network_size ) {
        if (!filter_var( $ip, FILTER_VALIDATE_IP )) {
            throw new Exception("IP address $ip not valid.");
        }
        if ( ( $network_size < 1 ) || ( $network_size > 32 ) ) {
            throw new Exception("Network size $network_size not valid.");
        }
    }

[markrogoyski]

Thanks. Updated.