Supported Versions: PHP 7 >= 7.3.0, PHP 8
Get the system's high resolution time
hrtime(bool $as_number false): array|int|float|false
    public function updateTime()

    {

        return 
$this->time $this->useHighResolution \hrtime(true) * 1e-9 \microtime(true);

    }



    public function 
getTime()