Question

尝试提出问题并回答网页上的选项，该网页将从数据库中检索问题数据。 js对象的var如下所示：

    var questions = [{
        question: "What is 2*5?",
        choices: [2, 5, 10, 15, 20],
        correctAnswer: 2
    },...

虽然我可以让这些只有一定数量的问题，但我想让它更有活力。

这就是我目前所写的：

<script type="text/javascript">
    var questions = [
            <?php
            include "functions/connect.php";
            $selqq="select * from quiz_question where QUIZ_ID=2";
            $runqq=mysqli_query($con,$selqq);
            while($rowqq=$runqq->fetch_array())
            {    
                echo "{ question: '".$rowqq['QUESTION']."',
                choices: [".$rowqq['CHOICE0'].",".$rowqq['CHOICE1'].",".$rowqq['CHOICE2'].",".$rowqq['CHOICE3']."],
                correctAnswer: ".$rowqq['ANSWER']."},";
            }
            ?>];
</script>

这对我不起作用，也许是因为“，”接近结尾，并将其置于开头也会这样做。如何制作它以便我可以在数组中放置任意数量的对象？有可能吗？

Answer 1

像这样更改脚本代码

<script type="text/javascript">
        var questions =
        <?php
         $data = null;
         $i = 0;
        include "functions/connect.php";
        $selqq="select * from quiz_question where QUIZ_ID=2";
        $runqq=mysqli_query($con,$selqq);
        while($rowqq=$runqq->fetch_array())
        {    
            $data[$i]['question']  = $rowqq['QUESTION'];
            $data[$i]['choices']  = $rowqq['CHOICE0'].$rowqq['CHOICE1'].$rowqq['CHOICE2'].$rowqq['CHOICE3'];
            $data[$i]['correctAnswer'] = $rowqq['ANSWER'];
          $i++;
        }
         echo json_encode($data);
        ?>
   </script>

如何动态地将变量回显到js对象中

1 个答案: