Question

我想做出多项选择，问题来自数据库。我确信我的数据库名称是正确的，但是当我点击下一个时，问题没有改变，它直接转到问题的结尾/结果，问题也不是随机的。我插入数据库的最后一个问题显示在网页中。请帮忙

这是我的代码：

<?php
require_once('includes/db_conn.php');
$query = "select * from question";
$query_result = $dbc->query($query);
$num_questions_returned = $query_result->num_rows;

if ($num_questions_returned < 1){
    echo "There is no question in the database";
    exit();}
$questionsArray = array();
while ($row = $query_result->fetch_assoc()){
    $questionsArray[] = $row;
}

$correctAnswerArray = array();
foreach($questionsArray as  $question){
    $correctAnswerArray[$question['question']] = $question['correct_answer'];
}

$questions = array();
foreach($questionsArray as $question) {
    $questions[$question['question']] = $question['question'];
 }

$choices = array();
foreach ($questionsArray as $row) {
    $choices[$row['question']] = array($row['wrong_answer1'], $row['wrong_answer2'], $row['wrong_answer3'], $row['correct_answer']);
  }

error_reporting(0);
$address = "";
$randomizequestions ="yes";

$a = array(
1 => array(
   0 => $question['question'],
   1 => $row['wrong_answer1'],
   2 => $row['wrong_answer2'],
   3 => $row['wrong_answer3'],
   4 => $row['correct_answer'],
   6 => 4
),
);

$max=1;

$question=$_POST["question"] ;

if ($_POST["Randon"]==0){
        if($randomizequestions =="yes"){$randval = mt_rand(1,$max);}else{$randval=1;}
        $randval2 = $randval;
        }else{
        $randval=$_POST["Randon"];
        $randval2=$_POST["Randon"] + $question;
                if ($randval2>$max){
                $randval2=$randval2-$max;
                }
        }

$ok=$_POST["ok"] ;

if ($question==0){
        $question=0;
        $ok=0;
        $percentage=0;
        }else{
        $percentage= Round(100*$ok / $question);
        }
?>

<HTML><HEAD>

<SCRIPT LANGUAGE='JavaScript'>
<!-- 
function Goahead (number){
        if (document.percentaje.response.value==0){
                if (number==<?php print $a[$randval2][6] ; ?>){
                        document.percentaje.response.value=1
                        document.percentaje.question.value++
                        document.percentaje.ok.value++
                }else{
                        document.percentaje.response.value=1
                        document.percentaje.question.value++
                }
        }
        if (number==<?php print $a[$randval2][6] ; ?>){
                document.question.response.value="Correct"
        }else{
                document.question.response.value="Incorrect"
        }
}
// -->
</SCRIPT>

</HEAD>
<BODY BGCOLOR=FFFFFF>

<CENTER>
<H1><?php print "$title"; ?></H1>
<TABLE BORDER=0 CELLSPACING=5 WIDTH=500>

<?php if ($question<$max){ ?>

<TR><TD ALIGN=RIGHT>
<FORM METHOD=POST NAME="percentaje" ACTION="<?php print $URL; ?>">

<BR>Percentaje of correct responses: <?php print $percentage; ?> %
<BR><input type=submit value="Next >>">
<input type=hidden name=response value=0>
<input type=hidden name=question value=<?php print $question; ?>>
<input type=hidden name=ok value=<?php print $ok; ?>>
<input type=hidden name=Randon value=<?php print $randval; ?>>
<br><?php print $question+1; ?> / <?php print $max; ?>
</FORM>
<HR>
</TD></TR>

<TR><TD>
<FORM METHOD=POST NAME="question" ACTION="">
<?php print "<b>".$a[$randval2][0]."</b>"; ?>

<BR>     <INPUT TYPE=radio NAME="option" VALUE="1"  onClick=" Goahead (1);"><?php print $a[$randval2][1] ; ?>
<BR>     <INPUT TYPE=radio NAME="option" VALUE="2"  onClick=" Goahead (2);"><?php print $a[$randval2][2] ; ?>
<?php if ($a[$randval2][3]!=""){ ?>
<BR>     <INPUT TYPE=radio NAME="option" VALUE="3"  onClick=" Goahead (3);"><?php print $a[$randval2][3] ; } ?>
<?php if ($a[$randval2][4]!=""){ ?>
<BR>     <INPUT TYPE=radio NAME="option" VALUE="4"  onClick=" Goahead (4);"><?php print $a[$randval2][4] ; } ?>

<BR>     <input type=text name=response size=8>


</FORM>

<?php
}else{
?>
<TR><TD ALIGN=Center>
The Quiz has finished
<BR>Percentage of correct responses: <?php print $percentage ; ?> %
<p><A HREF="<?php print $address; ?>">Home Page</a>

<?php } ?>

</TD></TR>
</TABLE>

</CENTER>
</BODY>
</HTML>

这是我的进程向数据库添加数据：

<?php
include('includes/header.html');

error_reporting(-1);
ini_set('display_errors', 'On');

//Check for empty fields
if(empty($_POST['question'])||
    empty($_POST['correct_answer']) ||
    empty($_POST['wrong_answer1'])      ||
    empty($_POST['wrong_answer2'])      ||
    empty($_POST['wrong_answer3']))
{
    echo "Please complete all fields";
    exit();
}

//Create short variables
$question = $_POST['question'];
$correct_answer = ($_POST['correct_answer']);
$wrong_answer1 = ($_POST['wrong_answer1']);
$wrong_answer2 = ($_POST['wrong_answer2']);
$wrong_answer3 = ($_POST['wrong_answer3']);

//connect to the database
require_once('includes/db_conn.php');

//Create the insert query
$query = "INSERT INTO question VALUES ('$question', '$correct_answer', '$wrong_answer1','$wrong_answer2','$wrong_answer3')";

$result = $dbc->query($query);

if($result){
    echo "Your quiz has been saved";
} else {
    echo '<h1>System Error</h1>';
}
$dbc->close();

?>

Answer 1

你的第一个错误是制作一个$ a的数组为什么你没有使用你在上一个循环中做出的$选择而且随机问题处理$ choices数组而你的下一个提交按钮在表单之外所以你不会得到下一个按钮上的表单值。将其放在表单标记内。

另一件事是在单选按钮上点击“不要写任何东西，只需在提交点击事件上写下你的功能”，然后在保存上一个答案后处理下一个问题。

以下是我的建议..有关更多帮助，请将数据库备份及其连接文件放在此处，以便我可以帮助您进行编码。

使用数据库中的数据进行多项选择

1 个答案: