Writing a Quiz HELP

[stephflix]

Hey Everyone,

I'm trying to make a quiz in PHP for a class. THis is what I have so far. I just can't get the answers to show up. Any help will be wonderful!

 

 

<?php

 

 

$quiz_questions = array();

$quiz_questions['q1'] = array(

'question' => 'What is Rebel Wilsons Character Name?',

'choices' => array(

'a' => 'Fat Amy',

'b' => 'Rebelicious',

'c' => 'Fat Samy',

'd' => 'Pitch Slapper'),

'answer' => 'a');

$quiz_questions['q2'] = array(

'question' => 'What are Nodes?',

'choices' => array(

'a' => 'An STD',

'b' => 'Vocal cords rubbing together at an above average rate w/o proper lubrication',

'c' => 'A point at which lines or pathways intersect',

'd' => 'A high note'),

'answer' => 'b');

$quiz_questions['q3'] = array(

'question' => 'What song did Beca audition with?',

'choices' => array(

'a' => 'Cups',

'b' => 'Call me Maybe',

'c' => 'Titanium',

'd' => 'No Diggity'),

'answer' => 'a');

$quiz_questions['q4'] = array(

'question' => 'Where does Beca work?',

'choices' => array(

'a' => 'Jamba Juice',

'b' => 'Vocal coach at the university',

'c' => 'University radio station',

'd' => 'McDonalds'),

'answer' => 'c');

$quiz_questions['q5'] = array(

'question' => 'What happened at last years finals?',

'choices' => array(

'a' => 'They Won',

'b' => 'Chloe had surgery on her vocal chords',

'c' => 'Bumper sabotaged the Barden Belles',

'd' => 'Aubrey threw up on stage'),

'answer' => 'd');

 

 

 

 

 

 

if($user_answers[$qid] ==' '){

//user did not answer the question

}elseif($user_answers[$qid] == $question['answer']){

//answer is correct

$total_answered++;

$total_correct++;

}else{

//answer is wrong

$total_answered++;

}

 

 

foreach($quiz_questions as $qid => $question){

//output the question text

echo '<p>'.$question['question']. '<p>';

}

 

 

foreach($question['choices'] as $cid => $choice){

 

$lid = $qid.'_'.$cid;

//default message

$msg = ' ';

 

 

$checked = ($user_answers[$qid]== $cid) ? ' checked ' : ' ';

 

 

//if all questions have been answered, display correct and wrong answers

if($total_answered > 0 and $total_answered == $total_questions){

if ($checked){

if($user_answers[$qid]== $question['answer']){

$msg = echo '<p>CORRECT!</p>';

}else{

$msg = echo '<p>INCORRECT</p>';

}

}

}

 

echo '

<input type="radio" name=" ' . $qid . ' " value= " ' .$cid. ' " id= " ' .$lid. ' " ' . $checked . '/>

<label for =" '. $lid . ' ">' . $choice . '</label>';

 

 

?>

[Jessica]

Please put your code in the code tags.

[stephflix]

How do you do that?

[stephflix]

<?php
 
 
$quiz_questions = array();
$quiz_questions['q1'] = array(
'question' => 'What is Rebel Wilsons Character Name?',
'choices' => array(
'a' => 'Fat Amy',
'b' => 'Rebelicious',
'c' => 'Fat Samy',
'd' => 'Pitch Slapper'),
'answer' => 'a');
$quiz_questions['q2'] = array(
'question' => 'What are Nodes?',
'choices' => array(
'a' => 'An STD',
'b' => 'Vocal cords rubbing together at an above average rate w/o proper lubrication',
'c' => 'A point at which lines or pathways intersect',
'd' => 'A high note'),
'answer' => 'b');
$quiz_questions['q3'] = array(
'question' => 'What song did Beca audition with?',
'choices' => array(
'a' => 'Cups',
'b' => 'Call me Maybe',
'c' => 'Titanium',
'd' => 'No Diggity'),
'answer' => 'a');
$quiz_questions['q4'] = array(
'question' => 'Where does Beca work?',
'choices' => array(
'a' => 'Jamba Juice',
'b' => 'Vocal coach at the university',
'c' => 'University radio station',
'd' => 'McDonalds'),
'answer' => 'c');
$quiz_questions['q5'] = array(
'question' => 'What happened at last years finals?',
'choices' => array(
'a' => 'They Won',
'b' => 'Chloe had surgery on her vocal chords',
'c' => 'Bumper sabotaged the Barden Belles',
'd' => 'Aubrey threw up on stage'),
'answer' => 'd');
 
 
 
 
 
 
if($user_answers[$qid] ==' '){
//user did not answer the question
}elseif($user_answers[$qid] == $question['answer']){
//answer is correct
$total_answered++;
$total_correct++;
}else{
//answer is wrong
$total_answered++;
}
 
 
foreach($quiz_questions as $qid => $question){
//output the question text
echo '<p>'.$question['question']. '<p>';
}
 
 
foreach($question['choices'] as $cid => $choice){
 
$lid = $qid.'_'.$cid;
//default message
$msg = ' ';
 
 
$checked = ($user_answers[$qid]== $cid) ? ' checked ' : ' ';
 
 
//if all questions have been answered, display correct and wrong answers
if($total_answered > 0 and $total_answered == $total_questions){
if ($checked){
if($user_answers[$qid]== $question['answer']){
$msg = echo '<p>CORRECT!</p>';
}else{
$msg = echo '<p>INCORRECT</p>';
}
}
}
 
echo '
<input type="radio" name=" ' . $qid . ' " value= " ' .$cid. ' " id= " ' .$lid. ' " ' . $checked . '/>
<label for =" '. $lid . ' ">' . $choice . '</label>';
 
 
?>

 

 

[Barand]

Enclose in [ code][ /code] tags or use "<>" button in toolbar

 

You need something like

 

 

foreach ($quiz_questions as $qid => $q_data) {
    echo $q_data['question'] . '<br>';
    foreach ($q_data['choices'] as $cid => $choice) {
        echo "$cid - $choice<br>";
    }
}

[stephflix]

That worked! But how do I make it display radio buttons?

[Psycho]

 

$output = '';
if(!isset($_POST['choices']))
{
    //User did not answer the questions, show form
    $output .= "<form method='post' action=''>\n";
    $qNo = 0;
    foreach($quiz_questions as $qid => $question)
    {
        //output the question text
        $qNo++;
        $output .= "<p>{$qNo}. {$question['question']}<p>\n";
        foreach($question['choices'] as $choiceValue => $choiceText)
        {
            $output .= "<input type='radio' name='choices[{$qid}]' value='{$choiceValue}'> {$choiceText}<br>\n";
        }
    }
    $output .= "<br><br>\n";
    $output .= "<button type='submit'>Submit</button>\n";
    $output .= "</form>\n";;
}

[Barand]

like this

 

You will need a couple of hidden fields. One for the answer and another as a dummy radio button in case no selection is made

 

 

foreach ($quiz_questions as $qid => $q_data) {
    echo '<strong>' . $q_data['question'] . '</strong><br>';
    echo "<input type='hidden' name='answer[$qid]' value='{$q_data['answer']}'>";
    echo "<input type='hidden' name='choice[$qid]' value='' />"; //in case no selection
    foreach ($q_data['choices'] as $cid => $choice) {
        echo "<input type='radio' name='choice[$qid]' value='$cid' /> $choice<br>";
    }
}

[stephflix]

Thank you so much Barand! You've been a HUGE help! 

[stephflix]

<link href="Style/style.css" rel="stylesheet" type="text/css" />

<?php $page_title = "Pitch Perfect"; ?>
<?php include_once('includes/header.php'); ?>


<div class="content">

<?php

echo '<h1>Are you Aca-Awesome?</h1>';

$quiz_questions = array();
$quiz_questions['q1'] = array(
	'question' => 'What is Rebel Wilsons Character Name?',
	'choices' => array(
		'a' => 'Fat Amy',
		'b' => 'Rebelicious',
		'c' => 'Fat Samy',
		'd' => 'Pitch Slapper'),
		'answer' => 'a');
$quiz_questions['q2'] = array(
	'question' => 'What are Nodes?',
	'choices' => array(
		'a' => 'An STD',
		'b' => 'Vocal cords rubbing together at an above average rate w/o proper lubrication',
		'c' => 'A point at which lines or pathways intersect',
		'd' => 'A high note'),
		'answer' => 'b');
$quiz_questions['q3'] = array(
	'question' => 'What song did Beca audition with?',
	'choices' => array(
		'a' => 'Cups',
		'b' => 'Call me Maybe',
		'c' => 'Titanium',
		'd' => 'No Diggity'),
		'answer' => 'a');
$quiz_questions['q4'] = array(
	'question' => 'Where does Beca work?',
	'choices' => array(
		'a' => 'Jamba Juice',
		'b' => 'Vocal coach at the university',
		'c' => 'University radio station',
		'd' => 'McDonalds'),
		'answer' => 'c');
$quiz_questions['q5'] = array(
	'question' => 'What happened at last years finals?',
	'choices' => array(
		'a' => 'They Won',
		'b' => 'Chloe had surgery on her vocal chords',
		'c' => 'Bumper sabotaged the Barden Belles',
		'd' => 'Aubrey threw up on stage'),
		'answer' => 'd');



$total_answered = 0;
$total_correct = 0;


if($user_answers[$qid] ==' '){
//user did not answer the question
}elseif($user_answers[$qid] == $question['answer']){
//answer is correct
$total_answered++;
$total_correct++;
}else{
//answer is wrong
$total_answered++;
}



foreach ($quiz_questions as $qid => $q_data) {
    echo '<br><strong>' . $q_data['question'] . '</strong><br>';
    echo "<input type='hidden' name='answer[$qid]' value='{$q_data['answer']}'>";
    echo "<input type='hidden' name='choice[$qid' value='' />"; //in case no selection
    foreach ($q_data['choices'] as $cid => $choice) {
       echo "<input type='radio' name='choice[$qid]' value='$cid' /> $choice<br>";
    }
}
	echo '<p align="center"><input type="submit" name="submit" value="Submit" /></p>';
	
	?>
	</div>
    <?php include_once('includes/footer.php'); ?>

Does anyone know why I'm getting the following errors and how I can fix them?

Undefined variable: qid

Undefined variable: user_answers

 

Line 61 & 63

[Jessica]

Yes. At that point in the script $qid is not defined.

[stephflix]

How do I define it?

[Jessica]

What is it supposed to be?

 

Look at your code, you define it later. Why are you trying to use it BEFORE you defined it?

[stephflix]

Ugh, i see it now. Thanks.

I wish I could figure this stuff out...grrrr.