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how to compare the radio button value stored in database.

areeshkkj

By areeshkkj
in PHP Coding Help

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areeshkkj Newbie

areeshkkj

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Posted (edited)

i am developing online test ,after succesful completion of the test i want to display the correct answe,in databse i have stored corect answer as  radio button values(ex 1,2,3,4,) i want to display the coreect answer with a right mark,how can i achive this?could anybody help?

here is my code

  <?php  $testid=$_GET['testid'];
include_once("header.php");
?>
<html>
<head>
<body>
<?php
include_once('connect.php');
$sqltest="select testname from test where testid='$testid'";
$sqltestresult=mysql_query($sqltest) or die(mysql_error());
while($result=mysql_fetch_array($sqltestresult))
{
 $testname=$result['testname'];


}




?>
<!--pass test name and time left -->
<table width="100%" cellpadding="0" cellspacing="0" border="0"><tr><td width="50%" valign="middle">
                           <h1 style="margin-left:0;"><?php 
  if(isset($testname))
  {
  
  echo $testname ;
  }
  ?></h1>
                         </td>
                         <td width="50%" align="right" valign="middle">
 <ul class="tabs" id="tabs">
                <li id="showtime" style="font-weight:bold; color:#FF0000; bottom:5px; font-size:16px; float:right"></li>
</ul>


                         </td>
                        </tr></table>
<div class="div-tabs-container" class="div-tabs-container" style="width:79%;margin-left:3%" > 
        <table cellpadding="0" cellspacing="0" border="0" id="questiontable" >
        <tr>
<?php
include_once('connect.php');
$sql="select * from testquestions where testid='$testid'";
$result=mysql_query($sql) or die(mysql_error());
if (mysql_num_rows($result)>0)
{
  $data = array(); // create a variable to hold the information
while (($row = mysql_fetch_array($result, MYSQL_ASSOC)) !== false)


{
$data[] = $row; // add the row in to the results (data) array
}
//shift off the first value
array_shift($data[0]);


$merge = call_user_func_array('array_merge', $data);


$size=sizeof($merge);
$newdata=array();
$num=1;
$correctanswerarray=array();
$selctedanswers=array();
/* echo "<form action='fetchquestion.php' method='post' id='formsubmit' onsubmit='return out()' name='test'>"; */


foreach ($merge as $key => $value ) 
{


$sql2="select qid, question,option1,option2,option3,option4,correct_answer from question where qid='$value'  ";


$result2=mysql_query($sql2) or die(mysql_error());




  while($row2=mysql_fetch_assoc($result2))
{
                  $questionid=$row2['qid'];
    $question=$row2['question'];
$option1=$row2['option1'];
$option2=$row2['option2'];
$option3=$row2['option3'];
$option4=$row2['option4'];
        $correctanswer=$row2['correct_answer'];
#array to store the correct answer.
$correctanswerarray[] = $questionid.$correctanswer; 
   #$newdata[]=$row2;






echo "


 <table class='bix-tbl-container' cellspacing='0' cellpadding='0' border='0' width='100%' id='questiontable'><tr>
                <td class='bix-td-qno jq-qno-2413'  rowspan='2' valign='top' align='left'>$num</td>
                <td class='bix-td-qtxt' valign='top'><p>$question</p></td>
            </tr>
            <tr>
                <td class='bix-td-miscell' valign='top'><table class='bix-tbl-options' id='tblOption_2413' border='0' cellpadding='0' cellspacing='0' width='100%'><tr><td nowrap='nowrap' class='bix-td-option bix-td-radio' width='1%'  id='tdOptionNo_A_2413'>


<input type='radio' class='result-option cls_2413' name='option_$questionid' value='1'  id='disable'/>
</td><td class='bix-td-option' width='1%'>A.</td>
                         <td class='bix-td-option' width='48%' id='tdOptionDt_A_2413'><table border='0' cellpadding='0' cellspacing='0'>
        <tr>                                                          
        <td class='bix-inner-td-option'>$option1</td>                                                         
        <td id='tdAnswerIMG_A_2413' class='jq-img-answer'  valign='middle'style='display:none;padding-left:10px;'>               
           <img src='/_files/images/website/accept.png' alt='' />  
        </td>                                                         
        </tr>                                                         
        </table></td></tr><tr><td nowrap='nowrap' class='bix-td-option bix-td-radio' width='1%'  id='tdOptionNo_B_2413'>


<input type='radio' class='result-option cls_2413' name='option_$questionid'  value='2' id='disabble'/>
</td><td class='bix-td-option' width='1%'>B.</td>
                         <td class='bix-td-option' width='48%'id='tdOptionDt_B_2413'><table border='0' cellpadding='0' cellspacing='0'>
        <tr>                                                          
        <td class='bix-inner-td-option'>$option2</td>                                                         
        <td id='tdAnswerIMG_B_2413' class='jq-img-answer'  valign='middle' style='display:none;padding-left:10px;'>               
           <img src='/_files/images/website/wrong.gif' alt=''/>  
        </td>                                                         
        </tr>                                                         
        </table></td></tr><tr><td nowrap='nowrap' class='bix-td-option bix-td-radio' width='1%'  id='tdOptionNo_C_2413'>


<input type='radio' class='result-option cls_2413' name='option_$questionid'  value='3' id='disable'/>
</td><td class='bix-td-option' width='1%'>C.</td>
                         <td class='bix-td-option' width='48%' id='tdOptionDt_C_2413'><table border='0' cellpadding='0' cellspacing='0'>
        <tr>                                                          
        <td class='bix-inner-td-option'>$option3</td>                                                         
        <td id='tdAnswerIMG_C_2413' class='jq-img-answer'  valign='middle' style='display:none;padding-left:10px;'>               
           <img src='/_files/images/website/wrong.gif' alt='' />  
        </td>                                                         
        </tr>                                                         
        </table></td></tr><tr><td nowrap='nowrap' class='bix-td-option bix-td-radio' width='1%'  id='tdOptionNo_D_2413'>


<input type='radio' class='result-option cls_2413' name='option_$questionid' value='4' id='disable'/>
</td><td class='bix-td-option' width='1%'>D.</td>
                         <td class='bix-td-option' width='48%' id='tdOptionDt_D_2413'><table border='0' cellpadding='0' cellspacing='0'>
        <tr>                                                          
        <td class='bix-inner-td-option'>$option4</td>                                                         
        <td id='tdAnswerIMG_D_2413' class='jq-img-answer'  valign='middle' style='display:none;padding-left:10px;'>               
           <img src='/_files/images/website/wrong.gif' alt='' />  
        </td>                                                         
        </tr>                                                         
        </table></td></tr></table>
 \n 


<input type='hidden' name='count' value='$num' id='count'>
<input type='hidden' name='queId[]' value='$questionid' id='queId'> 
                  
    
    


                </td>
            </tr>
            </table>
";










$num++;


}


} 
  
 echo " 
      </tr>
        </table>  
   "; 
#array of correct answrer 
#echo "array of correct answer<br/>";
#print_r($correctanswerarray);
#echo "size of the coreect answer array";
   $size1=sizeof($correctanswerarray);
echo "<br/>";




}
else
{
echo " no questions available for selected test";
}
?>
 </div>
 <!-- add div right side -->
 <div style="height:500px;width:150px;float:right;margin-top:-500px;border:1px solid #99CCFF">
</div>


<div style="height:30px">
</div>
<!--  add div bottom -->
<div style="height:125px;border:1px solid #99CCFF">
</div>


<?php
 include('footer.html'); 
?>


</body>
</html>
Edited by mac_gyver
code tags around code please
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QuickOldCar Regular Member

QuickOldCar

Posted
Posted

You are going to want to store the users selections in a session or even a file if you wanted to.

 

Then you can just look at all the session data instead of saving to a database.

 

If you need to save results to a database as well, then you can compare session results to database results as well.

 

 

 

If you are using all GET requests, I can see just looping through $_GET and saving them into a session

session_start();

if(isset($_GET['testid']) && trim($_GET['testid']) !=''){
    foreach($_GET as $key=>$value){
        $_SESSION[$key] = trim($value);
    }
}

Now when you get your results from mysql, you can check them against the session values.

 

as an example

if($_SESSION['key'] == $row['key']){
$correct = true;
}
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