Attempted quizarray(2) {
  ["q1"]=>
  array(0) {
  }
  ["q2"]=>
  string(0) ""
}
<br>array(2) {
  [0]=>
  string(1) "C"
  [1]=>
  string(1) "D"
}
<br>array(1) {
  [0]=>
  string(1) "A"
}
<br>array(2) {
  ["q1"]=>
  array(2) {
    [0]=>
    string(1) "C"
    [1]=>
    string(1) "D"
  }
  ["q2"]=>
  string(1) "A"
}
array(0) {
}

<form method="post">
	<!-- Form data-->
	<input type="checkbox" name="q1[]" value="A"> A<br>
	<input type="checkbox" name="q1[]" value="B"> B<br>
	<input type="checkbox" name="q1[]" value="C"> C<br>
	<input type="checkbox" name="q1[]" value="D"> D<br>
	<br>

	<input type="radio" name="q2" value="A"> A<br>
	<input type="radio" name="q2" value="B"> B<br>
	<input type="radio" name="q2" value="C"> C<br>
	<input type="radio" name="q2" value="D"> D<br>
	
	<input type="submit" name="submit"><br>
</form>