$correctAnswers = 0;
        $answer;
        $correctAnswer;

        for ($x = 1; $x <= $loopLength; $x++) {
            $answer = $request->request->get('answer-' . $x);
            $correctAnswer = ($quiz[$x-1]->getAnswer()) ? 'true' : 'false';
            if( $answer === $correctAnswer ){
                $correctAnswers++;
            }
        }

        $percentageOfCorrectAnswers = ($correctAnswers * 100)/$loopLength;