Question

伙计们，我是新来的人，任何人都可以帮助我...我的问题是我正在使用php和ajax进行在线测验考试。问题是我正在向数据库中插入问题ID，所以有人可以帮助我解决这个问题...我给你看我的密码..

		                   <script>  
 $(document).ready(function(){  
  
      $('input[type="radio"]').click(function(){  
           var stu_ans=$(this).val();  
          var stu_id ="<?php echo $_GET['sid'];?>"; 
			var q_id = $('#qname').val();
           $.ajax({  
                url:"insert1.php",  
                method:"POST",  
                data:{stu_ans:stu_ans, stu_id:stu_id,q_id:q_id},  
                success:function(data){  
                     $('#result').html(data);  
                }  
           });  
      });  
 });  
 </script>
		
		<script>
		$('.cont').addClass('hide');

		$('#question_splitter_1').removeClass('hide');
		 
		$(document).on('click','.next',function(){
		    last=parseInt($(this).attr('id'));  console.log( last );   
		    nex=last+1;
		    $('#question_splitter_'+last).addClass('hide');
		    
		    $('#question_splitter_'+nex).removeClass('hide');
		});
		
		$(document).on('click','.previous',function(){
		    last=parseInt($(this).attr('id'));     
		    pre=last-1;
		    $('#question_splitter_'+last).addClass('hide');
		    
		    $('#question_splitter_'+pre).removeClass('hide');
		});
            
      
		</script>

      <style>
input[type="radio"] {
    -ms-transform: scale(1.5); /* IE 9 */
    -webkit-transform: scale(1.5); /* Chrome, Safari, Opera */
    transform: scale(1.5);
}
  </style>

<div class="container-fluied">
			<div class="col-xs-12">
				
				<hr>
				<form  role="form" id='formid' method="post" action="result.php?s_id=<?php echo $_GET['sid'];?>">
					<?php
					$number_question = 1;
					$row = mysqli_query( $con, "select * from question where subject_id='$category' ORDER BY RAND()");
				$rowcount = mysqli_num_rows( $row );
					$remainder = $rowcount/$number_question;
					$i = 0;
					$j = 1; $k = 1;
					
					?>
					<h4>Total Question:-<?php echo $rowcount;?></h4>
					<?php while ( $result = mysqli_fetch_assoc($row) ) {
						 if ( $i == 0) echo "<div class='cont' id='question_splitter_$j'>";?>
						<div id='question<?php echo $k;?>' >
						<p class='questions' id="qname<?php echo $j;?>" style="font-size:20px;font-weight:bold;color:green"> (<?php echo $k?>).<?php echo $result['que'];?></p>
						<input type="hidden" value="<?php echo $result['que'];?>" name="qname<?php echo $j;?>" id="qname">
						<div class="table-responsive">          
  <table class="table">

<thead>
<tr>
<th></th>
<th></th>
<th></th>
<th></th>

<th></th>
<th></th>
</tr>
</thead>
<tbody>

      <tr>
         <td>(A)<?php echo trim($result['o1']);?></td>
        <td colspan="5"><input type="radio" value="<?php echo $result['o1'];?>" id='radio1_<?php echo $result['id'];?>' name='<?php echo $result['id'];?>'></td>
       
      </tr>
	  <tr>
	   <td>(B)<?php echo $result['o2'];?>
					</td>
	  <td colspan="5"><input type="radio" value="<?php echo $result['o2'];?>" id='radio1_<?php echo $result['id'];?>' name='<?php echo $result['id'];?>'/></td>
	 
	  </tr>
	   <tr>
	     <td>(C)<?php echo $result['o3'];?></td>
	  <td colspan="5"><input type="radio" value="<?php echo $result['o3'];?>" id='radio1_<?php echo $result['id'];?>' name='<?php echo $result['id'];?>'/>
						</td>
	
	  </tr>
	   <tr>
	   	  <td>(D)<?php echo $result['o4'];?></td>
	  <td colspan="5"><input type="radio" value="<?php echo $result['o4'];?>" id='radio1_<?php echo $result['id'];?>' name='<?php echo $result['id'];?>'/>
						</td>

	  </tr>
    </tbody>
  </table>
  </div>
					
					
						
						
						
						<input type="radio" checked='checked' style='display:none' value="5" id='radio1_<?php echo $result['id'];?>' name='<?php echo $result['id'];?>'/>                                                                      
						<br/>
						</div>
						<?php
							 $i++; 
							 if ( ( $remainder < 1 ) || ( $i == $number_question && $remainder == 1 ) ) {
							 	echo "<button id='".$j."' class='next btn btn-success' type='submit'>Finish</button>";
							 	echo "</div>";
							 }  elseif ( $rowcount > $number_question  ) {
							 	if ( $j == 1 && $i == $number_question ) {
									echo "<button id='".$j."' class='next btn btn-success' type='button'>Next</button>";
									echo "</div>";
									$i = 0;
									$j++;           
								} elseif ( $k == $rowcount ) { 
									echo " <button id='".$j."' class='previous btn btn-success' type='button'>Previous</button>
												<button id='".$j."' class='next btn btn-success' type='submit'>Finish</button>";
									echo "</div>";
									$i = 0;
									$j++;
								} elseif ( $j > 1 && $i == $number_question ) {
									echo "<button id='".$j."' class='previous btn btn-success' type='button'>Previous</button>
							                    <button id='".$j."' class='next btn btn-success' type='button' >Next</button>";
									echo "</div>";
									$i = 0;
									$j++;
								}
								
							 }
							  $k++;
					     } ?>	
				</form>
			</div>
		</div>

<?php 
session_start();
include('db_connect.php');
include('db_connection.php');
$stu_id=$_SESSION['sid'];
echo $gender=$_POST['stu_ans'];
echo $que=$_POST['q_id'];
$q=mysqli_query($con,"SELECT * FROM question where id='$que'");
$ro=mysqli_fetch_array($q);
//$que=$ro['id'];
$date=date('d/m/y');
$right_ans=$ro['right_ans'];
////////////////////////Ajax Data Saved//////////////////////////////

$q1=mysqli_query($con,"SELECT * FROM student_ans where  q_id='$que' AND stu_id='$stu_id'");
$ro1=mysqli_num_rows($q1);
if($ro1==''){
	$sql = mysqli_query($con,"INSERT INTO student_ans(stu_ans,q_id,stu_id,date,right_ans) value('$gender','$que','$stu_id','$date','$right_ans')");
}else{

$sql1 = mysqli_query($con,"update student_ans set stu_ans='$gender' where q_id='$que' AND stu_id='$stu_id'"); 

}
?>

此代码的工作方式与单击单选按钮时一样，因此ajax函数可以正常工作并将答案保存到数据库中，但是当我将答案插入带有答案插入问题ID的数据库中时，我希望这样做

在线测验问题ID未插入数据库

0 个答案: