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Hi people I need some advice off you please. I'm creating a quiz for the website that I'm creating for my portfolio to help me to get a graduate job.

I want to get 20 questions (at random) I think I have got this sorted now. But when I try and run the quiz the following error shows

Parse error: syntax error, unexpected end of file in C:\xampp\htdocs\quiz.php on line 138

When I have to admit we are looking looking at this the wrong way.... I have just looked at the file more closely in dreamweaver. There is a read blob on line

This is the line of code that I think is giving me the headache

var url = 'quiz.php?question=<?php echo $next; ?>';

This is the complete file of code

  <?php
    //Connect with mysql
    $db = new mysqli("host","user","pass","db");

    //Perform the query to choose random questions
    $query = $db->query("SELECT * FROM `table` ORDER BY RAND() LIMIT 20");

    while($row = $query->fetch_assoc()):
        $question = $row['question'];
        echo $question."<br />";
    endwhile;

    //close result
    $query->close();
    //Close connection
    $db->close();

    session_start();
    if(isset($_GET['question'])){
    $question = preg_replace('/[^0-9]/', "", $_GET['question']);
    $next = $question + 1;
    $prev = $question - 1;
    if(!isset($_SESSION['qid_array']) && $question != 1){
    $msg = "Sorry! No cheating.";
    header("location: start.php?msg=$msg");
    exit();
    }
    if(isset($_SESSION['qid_array']) && in_array($question, $_SESSION['qid_array'])){
    $msg = "Sorry, Cheating is not allowed. You will now have to start over. Haha.";
    unset($_SESSION['answer_array']);
    unset($_SESSION['qid_array']);
    session_destroy();
    header("location: start.php?msg=$msg");
    exit();
    }
    if(isset($_SESSION['lastQuestion']) && $_SESSION['lastQuestion'] != $prev){
    $msg = "Sorry, Cheating is not allowed. You will now have to start over. Haha.";
    unset($_SESSION['answer_array']);
    unset($_SESSION['qid_array']);
    session_destroy();
    header("location: start.php?msg=$msg");
    exit();
    }
    ?>
    <!doctype html>
    <html>
    <head>
    <meta charset="utf-8">
    <title>Quiz Page</title>

    <script type="text/javascript">
    function countDown(secs,elem) {
    var element = document.getElementById(elem);
    element.innerHTML = "You have "+secs+" seconds remaining.";
    if(secs < 1) {
    var xhr = new XMLHttpRequest();
    var url = "userAnswers.php";
    var vars = "radio=0"+"&qid="+<?php echo $question; ?>;
    xhr.open("POST", url, true);
    xhr.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
    xhr.onreadystatechange = function() {
    if(xhr.readyState == 4 && xhr.status == 200) {
    alert("You did not answer the question in the allotted time. It will be marked as incorrect.");
    clearTimeout(timer);
    }
    }
    xhr.send(vars);
    document.getElementById('counter_status').innerHTML = "";
    document.getElementById('btnSpan').innerHTML = '<h2>Times Up!</h2>';
    document.getElementById('btnSpan').innerHTML += '<a href="quiz.php?question=<?php echo $next; ?>">Click here now</a>';
    }
    secs--;
    var timer = setTimeout('countDown('+secs+',"'+elem+'")',1000);
    }

    function getQuestion(){
    var hr = new XMLHttpRequest();
    hr.onreadystatechange = function(){
    if (hr.readyState==4 && hr.status==200){
    var response = hr.responseText.split("|");
    if(response[0] == "finished"){
    document.getElementById('status').innerHTML = response[1];
    }
    var nums = hr.responseText.split(",");
    document.getElementById('question').innerHTML = nums[0];
    document.getElementById('answers').innerHTML = nums[1];
    document.getElementById('answers').innerHTML += nums[2];
    }
    }
    hr.open("GET", "questions.php?question=" + <?php echo $question; ?>, true);
    hr.send();
    }
    function x() {
    var rads = document.getElementsByName("rads");
    for ( var i = 0; i < rads.length; i++ ) {
    if ( rads[i].checked ){
    var val = rads[i].value;
    return val;
    }
    }
    }
    function post_answer(){
    var p = new XMLHttpRequest();
    var id = document.getElementById('qid').value;
    var url = "userAnswers.php";
    var vars = "qid="+id+"&radio="+x();
    p.open("POST", url, true);
    p.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
    p.onreadystatechange = function() {
    if(p.readyState == 4 && p.status == 200) {
    document.getElementById("status").innerHTML = '';
    alert("Thanks, Your answer was submitted"+ p.responseText);
    var url = 'quiz.php?question=<?php echo $next; ?>';
    window.location = url;
    }
    }
    p.send(vars);
    document.getElementById("status").innerHTML = "processing...";
    }
    window.oncontextmenu = function(){
    return false;
    }
    </script>


    </head>

    <body onLoad="getQuestion()">
    <div id="status">
    <div id="counter_status"></div>
    <div id="question"></div>
    <div id="answers"></div>
    </div>


    </script>
    </body>
    </html> 

Hope someone can shed light on this program for me please

Thanks

Rich

Edited by pritaeas: Moved.

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Contributors
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Discussion Span
Last Post by stokie-rich
0

The problem is given by the closing bracket } of the very first IF statement:

if(isset($_GET['question'])){
    $question = preg_replace('/[^0-9]/', "", $_GET['question']);
    $next = $question + 1;
    $prev = $question - 1;
} // <-- this is missing
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Thanks for this I have put the code into my file I'm now getting the following errors when I try and run the quiz.

Warning: mysqli::mysqli(): php_network_getaddresses: getaddrinfo failed: No such host is known. in C:\xampp\htdocs\quiz.php on line 3

Warning: mysqli::mysqli(): (HY000/2002): php_network_getaddresses: getaddrinfo failed: No such host is known. in C:\xampp\htdocs\quiz.php on line 3

Warning: mysqli::query(): Couldn't fetch mysqli in C:\xampp\htdocs\quiz.php on line 6

Fatal error: Call to a member function fetch_assoc() on a non-object in C:\xampp\htdocs\quiz.php on line 8

Everything else is working on my site....

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This error is generated by the database connection string:

$db = new mysqli("host","user","pass","db");

Change the first parameter to the IP of your database for example localhost or 127.0.0.1, the same applies to the user, the password and the database name. Since the connection fails, it fails everything else. To prevent such errors you have to check if the connection is up, if you really got a result set from the database and then you can go further. For more information you can read this thread:

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thanks for this i put the ip address instead of "host" when i try and run the quiz it now shows this

Warning: mysqli::mysqli(): (HY000/1045): Access denied for user 'user'@'localhost' (using password: YES) in C:\xampp\htdocs\quiz.php on line 3

Warning: mysqli::query(): Couldn't fetch mysqli in C:\xampp\htdocs\quiz.php on line 6

Fatal error: Call to a member function fetch_assoc() on a non-object in C:\xampp\htdocs\quiz.php on line 8

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As I wrote:

the same applies to the user, the password and the database name

it means that you have to change them, accordingly with your database setup.

0

right ok i will have a look at it. I just dont undertsand that it was working before i wanted to just get 20 questions to show at ramdom....

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