in my project i have designed a online examination system
i have using one question and 4 options as a,b,c,d.i fetch the questions from database how to use this radio buttons dynamically to all questioned options(a,b,c,d ).in my code i select one radio button it selected after that i click another one questioned option (radio button)its diabled.how to use radio button commonly for all questions in php. my code is here. -
<html>
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<head><title>examination</title></head>
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<body>
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<?php
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$mins = date("i");
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if ($mins >= 0 && $mins < 30)
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{
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$timestr = date("H").':30';
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}
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else
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{
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$hour = (date("H") == 23) ? 00 : date("H")+1;
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$timestr = $hour.':00';
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}
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$timeleft = strtotime($timestr) - time();
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?>
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<script type="text/javascript">
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var timeleft = <?php print $timeleft; ?>;
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window.onload = function() {
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timer = setInterval(function() {
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timeleft = (timeleft == 0) ? 1800 : timeleft-1;
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document.getElementById('timeleft').innerHTML = timeleft;
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}, 1000);
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}
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</script>
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<span id="timeleft"><?php echo $timeleft; ?></span> seconds left
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<?php
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error_reporting('E_ALL ^ E_NOTICE');
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mysql_connect('localhost','root','') or die(mysql_error());
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mysql_select_db('test') or die(mysql_error());
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$page=$_REQUEST['p'];
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$limit=2;
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if($page=='')
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{
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$page=1;
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$start=0;
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}
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else
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{
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$start=$limit*($page-1);
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}
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$query=mysql_query("select * from history limit $start, $limit") or die(mysql_error());
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$tot=mysql_query("select * from history") or die(mysql_error());
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$total=mysql_num_rows($tot);
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$num_page=ceil($total/$limit);
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?>
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<form name="exam">
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<table><h2>Quiz</h2>
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<?php while($res=mysql_fetch_array($query))
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{ ?>
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<tr><td>Q<?php echo $res['id']?>. <?php echo $res['question'] ?></td></tr>
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<tr><td><input type="radio" id="a" name="ans" value="a">a.<?php echo $res['a']?></td></tr>
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<tr><td><input type="radio" id="b" name="ans" value="b">b.<?php echo $res['b']?></td></tr>
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<tr><td><input type="radio" id="c" name="ans" value="c">c.<?php echo $res['c']?></td></tr>
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<tr><td><input type="radio" id="d" name="ans" value="d">d.<?php echo $res['d'] ?><br><br></td></tr>
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<?php } ?>
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</table>
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<?php
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function pagination($page,$num_page)
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{
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echo'<ul style="list-style-type:none;">';
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for($i=1;$i<=$num_page;$i++)
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{
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if($i==$page)
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{
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echo'<li style="float:left;padding:5px;">'.$i.'</li>';
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}
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else
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{
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echo'<li style="float:left;padding:5px;"><a href="pagination.php?p='.$i.'">'.$i.'</a></li>';
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}
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}
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echo'</ul>';
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}
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if($num_page>1)
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{
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pagination($page,$num_page);
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}
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?>
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<input type="submit" value="Submit Quiz"></input>
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</form>
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</body>
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</html>
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1  4291  Dormilich 8,658
Recognized Expert Moderator Expert
each group of buttons (a, b, c, d) needs its own unique name. i.e. the radio buttons from question 1 need a different name from question 2’s buttons.
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