Can I post an array for 'submit'?

[nenana]

Hi all,

I am writing a test system.I want to post question id and selected answer id(I used radiobuttons), when user clicks on the 'Submit' button.Also I want same for the 'Next' and 'Back' buttons.
I am not entirely sure that I did correct.Here is the code

.....
{
for ($i = 0; $i < count($query); $i++) {
 
                $qid = $query[$i][0];               
 
                echo $qid;
                $tanswer = "SELECT ans.id,ans.text FROM answers AS ans WHERE '$qid'= ans.qid  AND ans.correct= 'true' ORDER BY RAND() LIMIT 1";
                $fanswers="SELECT ans.id,ans.text FROM answers AS ans WHERE '$qid'=ans.qid AND ans.correct='false' ORDER BY RAND () LIMIT 3";
                $fa=GetResultTableSQL($fanswers);
                $ta=GetResultTableSQL($tanswer);
                echo"<tr>
 
                 <td>{$query[$i][1]}</td>
                 </tr>";
                for($k=0;$k<count($fa);$k ++){
 
                 echo"<tr>
                 <td><input='hidden' name='quizID' value='$quizID'></td></tr>
                 <tr><td><input='hidden' name='qid' value='$qid'></td></tr>
                 <tr><td><input='hidden' name='aid' value='{$fa[$k][0]}'></td></tr>
                 <tr><td>{$fa[$k][1]}</td> <td><input type='radio' name='data[$qid][$aid]' value='{$fa[$k][0]}'></td>
                 </tr>";
                }
 
                 echo"
                 <td><input type='submit' name='n[$qid][$aid]' value='Next'></td>
                 <td><input type='submit' name='b[$qid][$aid]' value='Back'>
                 <td><input type='submit' name='s[$qid][$aid]' value='Submit'>
                 </td><td>&nbsp;</td>";
 
                }
 

Thanks in advance