I just started learning how to code PHP as well as HTML and as a challenge for myself I put together a questionnaire with what I have learnt so far which isn't as much as I would like to know e.g. sessions, databases, etc. Anyhoo, I would like to get the review of peers and would appreciate any constructive suggestions, ideas, etc. Here it does...
//Initialize page
$startpage = isset($_POST['page']) ? $_POST['page'] : 1;
$endpage = 11;
//Initialize score
$score = isset($_POST['score']) ? $_POST['score'] : 0;
if(isset($_POST['submit'])) {
$questions = array('question1' => 'superglobal', 'question2' => 'formsubmission', 'question3' => 'declare', 'question4' => 'symbol', 'question5' => 'statement', 'question6' => 'division', 'question7' => 'codeans',
'question8' => 'email', 'question9' => 'super', 'question10' => 'switch');
foreach($questions as $questionkey => $questionvalue) {
$questionpost = isset($_POST[$questionvalue]) ? $_POST[$questionvalue] : '';
if($questionkey == 'question'.$startpage && empty($questionpost)) {
$errormsg = 'Please select an answer for '. $questionkey;
echo $errormsg . '<br />';
}
}
//Answers
$answers = array('question1' => 'if', 'question2' => 'post', 'question3' => '$a', 'question4' => ';', 'question5' => '3', 'question6' => '%', 'question7' => 'infinite', 'question8' => 'mail',
'question9' => array('get', 'post', 'request'), 'question10' => array('break'));
//Loop through post array
foreach($questions as $questionkey => $questionvalue) {
// echo $postkey. '=' .$postvalue;
if(!empty($_POST[$questionvalue]) && $questionkey == 'question'.$startpage) {
//Loop through answers
foreach($answers as $key => $value) {
if(is_array($value)) {
foreach($value as $arraykey => $arrayvalue) {
if($questionkey == $key && $_POST[$questionvalue][$arraykey] == $arrayvalue) {
// echo $key. '=' .$arrayvalue;
echo 'Your answer for '. $questionkey .' was correct';
$startpage = $startpage + 1;
$score = $score + 1;
break;
}
else if($questionkey == $key && $_POST[$questionvalue][$arraykey] != $arrayvalue) {
echo 'Your answer for '. $questionkey .' was incorrect';
echo $_POST[$questionvalue][$arraykey];
break;
}
}
}
else {
if($questionkey == $key && $_POST[$questionvalue] == $value) {
// echo $key. '=' .$value. '<br />';
echo 'Your answer for '. $questionkey .' was correct';
$startpage = $startpage + 1;
$score = $score + 1;
// echo $questionkey;
// echo $key;
break;
}
else if($questionkey == $key && $_POST[$questionvalue] != $value) {
echo 'Your answer for '. $questionkey .' is incorrect';
// echo $questionvalue;
// echo $questionkey;
// echo $key;
break;
}
}
}
}
}
//Debug
// print_r($_POST);
}
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<title>Questionnaire</title>
</head>
<body>
<h1>Questionnaire</h1>
<p>This is a sample questionnaire that you can take and evaluate your results. Below are some tips</p>
<ol>
<li>This questionnaire has total of 10 questions</li>
<li>Each question is worth 1 point totalling 10 points</li>
<li>There are 8 multiple choice and 2 multi-select questions</li>
<li>At the end of the questionnaire, you'll be presented with your score</li>
</ol>
<form name="questionnaire" method="post" action="questionnaire.php">
<?php
echo
'<input type="hidden" name="page" value="'. $startpage. '">';
echo
'<input type="hidden" name="score" value="' . $score .'">';
switch($startpage) {
case(1):
echo
'<div> Question 1. Which one of these is a super global? <br />
<input type="radio" name="superglobal" value="if">if
<input type="radio" name="superglobal" value="and">and
<input type="radio" name="superglobal" value="get">GET
<input type="radio" name="superglobal" value="array">array
</div>';
break;
case(2):
echo
'<div> Question 2. Which one of these hides the values when submitting a form? <br />
<input type="radio" name="formsubmission" value="get">GET
<input type="radio" name="formsubmission" value="send">SEND
<input type="radio" name="formsubmission" value="parcel">PARCEL
<input type="radio" name="formsubmission" value="post">POST
</div>';
break;
case(3):
echo
'<div> Question 3. Select which one these is the correct way of declaring a variable? <br />
<input type="radio" name="declare" value="a">a
<input type="radio" name="declare" value="$a">$a
<input type="radio" name="declare" value="%a">%a
<input type="radio" name="declare" value="%a">%a
</div>';
break;
case(4):
echo
'<div> Question 4. Which symbol would you have at the end of a statemement <br />
<input type="radio" name="symbol" value=";">;
<input type="radio" name="symbol" value="#">#
<input type="radio" name="symbol" value="*">*
<input type="radio" name="symbol" value="/">/
</div>';
break;
case(5):
echo
'<div> Question 5. Select which one of these statements is true? <br />
<input type="radio" name="statement" value="2">a++ equals to 2 if a is 1
<input type="radio" name="statement" value="3">++a is equals to 3 if a is 2
<input type="radio" name="statement" value="divide">\ is the symbol for divisions
<input type="radio" name="statement" value="zero">0 is the value that represents true
</div>';
break;
case(6):
echo
'<div> Question 6. Which symbol gives the remainder in a division? <br />
<input type="radio" name="division" value=")">)
<input type="radio" name="division" value="}">}
<input type="radio" name="division" value="%">%
<input type="radio" name="division" value=";")>;
</div>';
break;
case(7):
echo
'<div> Question 7. What will the code below return <br />
<pre>
$a=1
while($a < 10) {
echo $a;
}
</pre>
<input type="radio" name="codeans" value="one">1
<input type="radio" name="codeans" value="zero">0
<input type="radio" name="codeans" value="infinite">infinite loop
<input type="radio" name="codeans" value="3">3
</div>';
break;
case(8):
echo
'<div> Question 8. What function can you use to send an email <br />
<input type="radio" name="email" value="mail">mail
<input type="radio" name="email" value="email">email
<input type="radio" name="email" value="mailto">mailto
<input type="radio" name="email" value="send">send
</div>';
break;
case(9):
echo
'<div> Question 9. Which of the following are super-globals?<br />
<input type="checkbox" name="super[]" value="get">GET
<input type="checkbox" name="super[]" value="post">POST
<input type="checkbox" name="super[]" value="request">REQUEST
<input type="checkbox" name="super[]" value="process">PROCESS
</div>';
break;
case(10):
echo
'<div> Question 10. Which of the following are true to exit a switch statement? <br />
<input type="checkbox" name="switch[]" value="exit">exit
<input type="checkbox" name="switch[]" value="die">die
<input type="checkbox" name="switch[]" value="drop">drop
<input type="checkbox" name="switch[]" value="break">break
</div>';
break;
case(11):
echo 'Congratulations, you have completed the test and you scored.'. $score;
break;
}
?>
<?php
if($startpage < $endpage) {
echo '<div><input type="submit" name="submit" value="submit"></div>';
}
?>
</form>
</body>
</html>
