Question

我正在研究问题库系统，我在使用表格中的答案显示问题列表方面遇到了问题。

我想这样显示结果：

$question = array{
            array {
                'question' => 'Question MCQ',
                'answer'   => array{
                    'answer 1',
                    'answer 2',
                    'answer 3',
                    'answer 4',
                },
                'correct_answer' = 0
            },
            array {
                'question' => 'Question MCA',
                'answer'   => array{
                    'answer 1',
                    'answer 2',
                    'answer 3',
                    'answer 4',
                },
                'correct_answer' = 2
            },
            array {
                'question' => 'Question True and False',
                'answer'   => array{
                    'True',
                    'False',
                },
                'correct_answer' = 1
            },
}

我现在正在处理的代码是：

getQuestionByID（）

$select = $this->select()
        ->setIntegrityCheck(false)
        ->from(array('q' => $this->_name), array('questionID', 'questionDesc'));

$query = $select->query();
$statement = $query->fetchAll();
return $statement;

getMcQ（）

$select = $this->select()
        ->setIntegrityCheck(false)
        ->from(array('q' => 'questions'), array('questionID', 'questionDesc'))
        ->join(array('aq' => 'qanswer'), 'q.questionID = aq.questionID')
        ->join(array('a' => 'answers'), 'aq.answerID = a.answerID', array('answerID', 'answerDesc', 'isAnswer'));

$query = $select->query();
$stamnt = $query->fetchAll();
return $stamnt;

控制器

$getQ = new Questions();
$res = $getQ->getQuestionByID();
$questions = array();

foreach ($res as $que) {
    $tmp['question'] = $que->questionDesc;

    $res_ans = $getQ->getMcq();
    $index = 0;

    foreach ($res_ans as $ans) {
        $tmp['answer'] = $ans->answerDesc;
        if ($ans->isAnswer == 1) {
            $tmp['correct_answer'] = $index;
        }
        $index++;
    }

    array_push($questions, $tmp);
}

echo "<pre>";
print_r($questions);

我的代码的结果： click to view result from the code

对此有何帮助？提前致谢

Answer 1

我不明白你想用'correct_answer'做什么，但我认为用这个替换你的控制器代码，它应该对你有所帮助（除了字段'correct_answer'，但原则是相同的其余的。）

$getQ    = new Questions();
$res     = $getQ->getQuestionByID();
$res_ans = $getQ->getMcq();

$questions = array();

foreach ($res as $que) {
    $tmp = array();
    $tmp['question'] = $que->questionDesc;
    $index = 0;

    foreach ($res_ans as $ans) {
        if ($ans->questionID == $que->questionID){
            $tmp['answer'][] = $ans->answerDesc;
            if ($ans->isAnswer == 1) {
                $tmp['correct_answer'] = $index;
            }
            $index++;
        }
    }

    array_push($questions, $tmp);
}

echo "<pre>";
print_r($questions);
echo "</pre>";

使用多维数组显示结果

1 个答案: