public function start()
    {
        if (!$this->canStart()) {
            return false;
        }

        $this->startTime = microtime(true);

        return $this->setState(self::STATE_STARTED);
    }
public function start()
    {
        if (!$this->canStart()) {
            return false;
        }

        $this->startTime = microtime(true);

        return $this->setState(self::STATE_STARTED);
    }
public function start ( ) { if ( ! $ this -> canStart ( ) ) { return false ; } $ this -> startTime = microtime ( true ) ; return $ this -> setState ( self :: STATE_STARTED ) ; }
Start the watch.

@return bool returns if watch is started or not.
Start the watch .