public function timeTaken()
    {
        $timeStop = microtime(true);
        $timeTaken = (float) substr(-($this->timeStarted - $timeStop), 0, 5);
        return $timeTaken;
    }
public function timeTaken()
    {
        $timeStop = microtime(true);
        $timeTaken = (float) substr(-($this->timeStarted - $timeStop), 0, 5);
        return $timeTaken;
    }
public function timeTaken ( ) { $ timeStop = microtime ( true ) ; $ timeTaken = ( float ) substr ( - ( $ this -> timeStarted - $ timeStop ) , 0 , 5 ) ; return $ timeTaken ; }
Generate the amount of time taken since the object was contructed.

@return float
Generate the amount of time taken since the object was contructed .