public function sumStepCount()
    {
        $sum = 0;
        foreach ($this->installers as $installer) {
            $sum += $installer->stepCount();
        }

        return $sum;
    }
public function sumStepCount()
    {
        $sum = 0;
        foreach ($this->installers as $installer) {
            $sum += $installer->stepCount();
        }

        return $sum;
    }
public function sumStepCount ( ) { $ sum = 0 ; foreach ( $ this -> installers as $ installer ) { $ sum += $ installer -> stepCount ( ) ; } return $ sum ; }
Get the total number of steps from all installers.

@return int
Get the total number of steps from all installers .