doforumda Posted October 17, 2009 Share Posted October 17, 2009 hi i have following code <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <!--<meta http-equiv="refresh" content="51;url=quiz2action.php" />--> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>Untitled Document</title> </head> <body> <div id = "time"></div> <script type = "text/javascript"> } function display(secs) { if (secs <= 0) { alert("Your time is up!"); return; } secs--; document.getElementById("time").innerHTML = "You have " + Math.floor(secs/60) + ":" + (secs % 60 < 10 ? "0" : "" ) + (secs % 60) + " left"; setTimeout("display("+secs+")",1000); } display(51); // 300 seconds = 5 minutes </script> <p> <form name="form1" method="post" action="quiz2action.php"> <?php $db = mysql_connect("localhost"); mysql_select_db("videoshop", $db); //$queryquestions = "SELECT * FROM quiz ORDER BY RAND()" or die(); $queryquestions = "SELECT * FROM quiz" or die(); $resultquestions = mysql_query($queryquestions) or die(); while($rowquestions = mysql_fetch_array($resultquestions)) { $questionid = $rowquestions['id']; $question = $rowquestions['question']; $answerone = $rowquestions['option1']; $answertwo = $rowquestions['option2']; $answerthree = $rowquestions['option3']; $answerfour = $rowquestions['option4']; echo " <b>Question $questionid: $question</b><br> <input type=\"radio\" name=\"question[$questionid]\" value=\"1\"> $answerone <br> <input type=\"radio\" name=\"question[$questionid]\" value=\"2\"> $answertwo <br> <input type=\"radio\" name=\"question[$questionid]\" value=\"3\"> $answerthree <br> <input type=\"radio\" name=\"question[$questionid]\" value=\"4\"> $answerfour <br>"; echo "<br><br>"; } ?> </p> <label> <input type="submit" name="Submit" id="button" value="Submit"> </label> </form> <p> </p> </body> </html> above is the code of quiz which is created in php. that quiz is fine. the problem in in js script above the php script. what i want is when the time of 5 mins is completed then i want to disable all those radio buttons except submit button. how can this be done? Link to comment https://forums.phpfreaks.com/topic/178024-how-to-disable-radio-buttons-after-certain-amount-of-time/ Share on other sites More sharing options...
.josh Posted October 17, 2009 Share Posted October 17, 2009 You can use setTimeout() to call a function after x time that will change them to being disabled. Note: You will have to add id attributes to your form elements so you can use getElementById() to change the state of them to disabled. Note: Doing all this is not foolproof. Pretty easy for user to sidestep javascript. The more ideal method would be to use php to start a session and store a "start" time and upon form submission, use php to compare the current time to that start time. In other words, use server-side validation, not client-side. Link to comment https://forums.phpfreaks.com/topic/178024-how-to-disable-radio-buttons-after-certain-amount-of-time/#findComment-938667 Share on other sites More sharing options...
haku Posted October 17, 2009 Share Posted October 17, 2009 You could also add the radio buttons using javascript, so that they couldn't do the quiz if javascript wasn't enabled. This would let the timer work. It's still circumventable, but much more difficult. Link to comment https://forums.phpfreaks.com/topic/178024-how-to-disable-radio-buttons-after-certain-amount-of-time/#findComment-938677 Share on other sites More sharing options...
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