public function getRuntime(int $precision = 10)
    {
        if ($this->startTime == $this::NOT_INITIALIZED || $this->endTime == $this::NOT_INITIALIZED) {
            return FALSE;
        }

        $runTime = round($this->endTime - $this->startTime, $precision);

        return $runTime;
    }
public function getRuntime(int $precision = 10)
    {
        if ($this->startTime == $this::NOT_INITIALIZED || $this->endTime == $this::NOT_INITIALIZED) {
            return FALSE;
        }

        $runTime = round($this->endTime - $this->startTime, $precision);

        return $runTime;
    }
public function getRuntime ( int $ precision = 10 ) { if ( $ this -> startTime == $ this :: NOT_INITIALIZED || $ this -> endTime == $ this :: NOT_INITIALIZED ) { return FALSE ; } $ runTime = round ( $ this -> endTime - $ this -> startTime , $ precision ) ; return $ runTime ; }
to get the runtime.

@param int $precision
@return boolean
to get the runtime .