how to get php counter contents associated with variables - php

Question

I have written a quiz script and it all works fine. What I want to do now is some fine tuning.
There are 6 questions. The questions and answers are defined in variables like this:
$q7="(7) __________ you like the red one or the blue one? (Positive, simple present)";
$a7="(7) <strong>Do</strong> you like the red one or the blue one? (Positive, simple present)";
As the person answers each question there is a counter that increments each correct answer.
I can view the counter and see that it contains the correct number of responses, but it is only a number.
If the person gets 3 out of 6 correct I show them the score like this -
You got 3/6 correct.
What I want to do is also show them the 3 correct answers they chose, and not the incorrect answers.
Is this possible? If the counter knows there are 3 correct answers, how do I get that info? Those particular variables?
How do I get this -
if $counter contains 4 or less correct answers then display those answers.
// *** question 12 *** //
print "<p> </p><table id='english_nb'><tr>";
print "<th>$q12</th></tr></table>";
print "<table id='english_nb'><tr>";
if ($_POST['answer12']==$do)
print "<td width='25%'><input type='radio' checked='checked' name='answer12' value='$do' />$do</td>";
else
print "<td width='25%'><input type='radio' name='answer12' value='$do' />$do</td>";
if ($_POST['answer12']==$didnt){
print "<td width='25%'><input type='radio' checked='checked' name='answer12' value='$didnt' />$didnt</td>";
$correct++;
}
else
print "<td width='25%'><input type='radio' name='answer12' value='$didnt' />$didnt</td>";
if ($_POST['answer12']==$doesnt)
print "<td width='25%'><input type='radio' checked='checked' name='answer12' value='$doesnt' />$doesnt</td>";
else
print "<td width='25%'><input type='radio' name='answer12' value='$doesnt' />$doesnt</td>";
if ($_POST['answer12']==$did)
print "<td width='25%'><input type='radio' checked='checked' name='answer12' value='$did' />$did</td>";
else
print "<td width='25%'><input type='radio' name='answer12' value='$did' />$did</td>";
print "</tr></table>";
// *** check the answers *** //
foreach ($_POST as $value){
if (isset ($value)){
$done++;
}
}
if ($done !=7) //set this to 1 higher than the number of questions and answers
print "<input type='submit' name='submit' value='Check answers' />";
if (($correct<5)&&($done==7)) //set this to the number of minimum correct answers
print "<p>You should review the information and try the quiz again.</p>";
print "<p>Your score is $correct/6 correct.</p>"; //set this to the same number of questions and answers
if (($done > 0)&&($done < 7)) //set this to 1 higher than the number of questions and answers
print "<p>You haven't answered all the questions. Please finish the quiz and re-submit your answers.</p>";
if(($done==7)&&($correct>4))
{ //set this to 1 higher than the number of questions and answers
print "<p>Your score is $correct/6 correct.</p>"; //set this to the same number of questions and answers
if ($correct==0)
$correct='0';
else
{
print "<p>The correct answers:</p>";
print "<p>$a7</p>";
print "<p>$a8</p>";
print "<p>$a9</p>";
print "<p>$a10</p>";
print "<p>$a11</p>";
print "<p>$a12</p>";

Answer 1

You could improve your code a lot, arrays would be a great start as others have said.
A simple way to do what you want could be adding a $correctAnswers = ""; variable, and everytime you use $correct++; add $correctAnswers .= "<p>$a1</p>"; and so on.
Then you could show them with print $correctAnswers;

Answer 2

$q=array($q1,$q2,....); //questions array
$a=array($a1,$a2,....); //answers array
correctAnswer=array(); //array of correct answers. empty at start
if (question=$q[0] && answer=$a[0]){ //if question and answer match
$correctAnswer[]=$a[0]; //adds the correct answer to the array
}
else{
// do something if the q &a doesnt match
}
$correct_answer_count = count($correctAnswer);