Question

我设法设置了一个在线考试网站的时间。这里的所有资源都有很大的帮助！但是，我在计时器中面临着更加艰巨的任务。出于某些原因，很明显我不知道，单击“下一个问题”提交输入后，它将重置。怎么了？

首先，我将javascript代码添加到了显示计时器的主页上，然后在网上某个地方发现包含它作为标头就可以解决问题。哪个没有用，或者我没有正确执行。我对此知识不多。

Header.php下方的javascript文件

<?php $dateFormat="d F Y -- g:i a" ; $targetDate=t ime() + (1*60);//Change the 25 to however many minutes you want to countdown $actualDate=t ime(); $secondsDiff=$ targetDate - $actualDate; $remainingMinutes=f loor(($secondsDiff-($remainingDay*60*60*24)- ($remainingHour*60*60))/60); $remainingSeconds=f loor(($secondsDiff-($remainingDay*60*60*24)- ($remainingHour*60*60))-($remainingMinutes*60)); $actualDateDisplay=d ate($dateFormat,$actualDate); $targetDateDisplay=d ate($dateFormat,$targetDate); ?>
<script type="text/javascript">
    var minutes = <? php echo $remainingMinutes; ?>
    var seconds = <? php echo $remainingSeconds; ?>
    function setCountDown() {
        seconds--;
        if (seconds < 0) {
            minutes--;
            seconds = 59
        }
        if (minutes < 0) {
            hours--;
            minutes = 59
        }
        document.getElementById("remain").innerHTML = minutes + " m: " + seconds + " 
        s ";
        setTimeout("setCountDown()", 1000);
        if (minutes == '00' && seconds == '00') {
            seconds = "00";
            clearTimeout();
            document.getElementById("myfm").submit();
        }
    }
</script>

test.php又是以下主页：

<?php $query="select * from tbl_questions" ; $rs=mysqli_query($con, "select * from tbl_questions where test_id=$tid and 
    course_id=$sid") or die(mysqli_error()); if(!isset($_SESSION[ 'qn'])) { $_SESSION[ 'qn']=0 ; mysqli_query($con, "delete from tbl_answers where sess_id='" . session_id() . "'") or die(mysqli_error()); $_SESSION[ 'trueans']=0; } else { if($submit=='Next Question' && isset($ans)) { mysqli_data_seek($rs,$qn); $row=m ysqli_fetch_row($rs); $q=mysqli_real_escape_string($con,$row[1]); $r=mysqli_real_escape_string($con,$row[4]); $s=mysqli_real_escape_string($con,$row[5]); $t=mysqli_real_escape_string($con,$row[6]); $u=mysqli_real_escape_string($con,$row[7]); mysqli_query($con, "insert into tbl_answers(sess_id, course_id, test_id, 
    que_des, ans1,ans2,ans3,ans4,true_ans,your_ans) values 
    ('".session_id(). "', $sid, $tid,'$q','$r','$s','$t', 
    '$u','$row[8]','$ans')") or die(mysqli_error($con)); if($ans==$row[8]) { $_SESSION[ 'trueans']=$_SESSION[ 'trueans']+1; } $_SESSION[ 'qn']=$_SESSION[ 'qn']+1; } else if($submit=='Final Submit' && isset($ans)) { mysqli_data_seek($rs,$_SESSION[ 'qn']); $row=m ysqli_fetch_row($rs); $q=mysqli_real_escape_string($con,$row[1]); $r=mysqli_real_escape_string($con,$row[4]); $s=mysqli_real_escape_string($con,$row[5]); $t=mysqli_real_escape_string($con,$row[6]); $u=mysqli_real_escape_string($con,$row[7]); mysqli_query($con, "insert into tbl_answers(sess_id, course_id, test_id, 
    que_des, ans1,ans2,ans3,ans4,true_ans,your_ans) values 
    ('".session_id(). "', $sid, $tid,'$q','$r','$s','$t', 
    '$u','$row[8]','$ans')") or die(mysqli_error()); if($ans==$row[8]) { $_SESSION[ 'trueans']=$_SESSION[ 'trueans']+1; } echo "<div class='col-12 col-md-8 test-form'>"; echo "<h2> Result</h2>"; $_SESSION[ 'qn']=$_SESSION[ 'qn']+1; echo "<h1>Assessment Score:<td>"; echo "</h1>"; echo "<p class=sixteen>You Scored: </p>"; echo "<h1 class=green>" .$_SESSION[ 'trueans']; echo "</div>"; mysqli_query($con, "insert into 
    tbl_results(student_mat_no,course_id,test_id,scores,created_at) 
     values('$student_mat_no',$sid,$tid,".$_SESSION[ 'trueans']. ",'".date( "d/m/Y"). "')") or die(mysqli_error()); echo "<p class='btn btn-info home'><a href=index.php> Home</a> </p>"; echo "<p class='btn btn-danger logout'><a href=logout.php> Logout</a> 
    </p>"; unset($_SESSION[ 'qn']); unset($_SESSION[ 'sid']); unset($_SESSION[ 'tid']); unset($_SESSION[ 'trueans']); exit; } } $rs=mysqli_query($con, "select * from tbl_questions where test_id=$tid") or die(mysqli_error()); $total=m ysqli_num_rows($rs); if($_SESSION[ 'qn']>mysqli_num_rows($rs)-1) { unset($_SESSION['qn']); echo "
<h1 class=head1>Error Occured</h1>"; session_destroy(); echo "Lets <a href=index.php> Start Over</a>"; exit; } mysqli_data_seek($rs,$_SESSION['qn']); $row= mysqli_fetch_row($rs); echo "
<div class='col-12 col-md-8 test-form'>"; echo "
    <form id=myfm name=myfm method=post action=test.php>"; include ('header.php'); echo "
        <div id=remain>$remainingMinutes minutes, $remainingSeconds seconds"; echo "</div>"; $n=$_SESSION['qn']+1; echo "
        <div class=current>Question ". $n ." of ". $total. " : ". $row[1] . "
        </div>"; echo "</p>"; echo "
        <ul class=choices>"; echo "
            <li>
                <input name=ans type=radio value=1>$row[4]</li>"; echo "
            <li>
                <input name=ans type=radio value=2>$row[5]</li>"; echo "
            <li>
                <input name=ans type=radio value=3>$row[6]</li>"; echo "
            <li>
                <input name=ans type=radio value=4>$row[7]</li>"; echo "</ul>"; echo "
        <input class='btn btn-primary' type=submit name=submit value='Next 
    Question'>"; echo "
        <input class='btn btn-danger' type=submit name=submit value='Final 
    Submit'>
    </form>"; echo "</div>"; ?>

我希望这个计时器停止重新设置进入时间，或者在下一个问题中，超时时错误可能不是自动提交，但这又是一天了

如何修复在新问题上重置的在线考试计时器

0 个答案: