PHP / Mysql , compare the values from two while loops - php

Question

Is there any way to take the contents of my while query below and use it elsewhere in my php script ?. What I am trying to do is collect the answers from a quiz and then compare them to the correct answers, the problem I am having is that the answers come from one table and the questions from another, so I am currently having to run two different while queries, but I cant use $quiz in the 2nd query as it just stays fixed with the last value it spat out. What im basically trying to do it load table A, look inside for the questionID, select that table and pull out the correct answer. Then load table B, looking inside that, select the answer with the same questionID and then use an if statement to compare to to, so that if correctanswer = actualanswer = correct , and loop over this for each question. The main problem that im coming up against though is the first while pulls out all the correct answers just fine, but I cant then use that in the other while to compare too. Im not sure if this is the correct way of doing it, or if there is a better way ?.
LOOK FOR THE CORRECT ANSWER :
$result0 = mysql_query("SELECT * FROM itsnb_chronoforms_data_createquestions
WHERE quizID='$quizID' ORDER BY cf_id ASC");
while($row0 = mysql_fetch_array($result0))
{
$answer = $row0['correctanswer'];
}
LOOK FOR THE ACTUAL ANSWER SUBMITTED :
$result = mysql_query("SELECT * FROM itsnb_chronoforms_data_answerquiz
WHERE quizID='$quizID' AND userID='$userID' ORDER BY cf_id ASC");
while($row = mysql_fetch_array($result))
{
$quiz = $row['quizselectanswer'];
}

Answer 1

Join is propably the best way to do this. But you could also use the php in_array()-Function:
$result0 = mysql_query("SELECT * FROM itsnb_chronoforms_data_createquestions WHERE quizID='$quizID' ORDER BY cf_id ASC");
while($row0 = mysql_fetch_array($result0))
{
$answers[] = $row0['correctanswer'];
}
And Then
$result = mysql_query("SELECT * FROM itsnb_chronoforms_data_answerquiz WHERE quizID='$quizID' AND userID='$userID' ORDER BY cf_id ASC");
while($row = mysql_fetch_array($result))
{
if(in_array($row['quizselectanswer'],$answers)){
...correct...
break;
}
}

Answer 2

SELECT * FROM itsnb_chronoforms_data_answerquiz a, itsnb_chronoforms_data_createquestions
q WHERE a.quizID='$quizID' AND a.userID='$userID' and q.quizID=a.quizID and
a.quizselectanswer = q.correctanswer
Should return all the correct answers. If you also want the wrong answers, you need to do a outer join on the two tables.