// save the questions from step 3
 $quiz = new Quiz($quiz_id);
 if ($mode == "simple" || $mode == "accurate") {
     require "../modules/variables.php";
     $numResults = $quiz->getResultsMulti("count");
     //function in quiz.php
     // Insert the questions and options
     $questionArray = explode("_", $_POST['optionCounts']);
     //array explode ( string $delimiter , string $string [, int $limit ] )
     //explode a string by the delimitor to array
     $question = array();
     for ($i = 0; $i < $_POST['questionCount']; $i++) {
         if (isset($_POST['question_' . $i])) {
             if (isset($_POST['uq' . $i])) {
                 // uq:updateQuestion
                 $question_id = $quiz->updateQuestion($_POST['question_' . $i], $_POST['uq' . $i], $member->id);
             } else {
                 $question_id = $quiz->addQuestion($_POST['question_' . $i], $member->id);
             }
         }
         if ($mode == "simple") {
             for ($j = 0; $j < $questionArray[$i]; $j++) {
                 if (isset($_POST['q' . $i . 'o' . $j]) && isset($_POST['q' . $i . 'r' . $j])) {
                     if (isset($_POST['uq' . $i . 'o' . $j])) {
                         $quiz->updateOptionMulti($_POST['q' . $i . 'o' . $j], $_POST['q' . $i . 'r' . $j], 1, $_POST['uq' . $i . 'o' . $j], $member->id);
                         //default of weightage = 1
                     }
                     if (!isset($_POST['uq' . $i . 'o' . $j])) {
                         //function from quiz.php: addOptionMulti($option, $result, $weightage, $question, $memberID)
                         $quiz->addOptionMulti($_POST['q' . $i . 'o' . $j], $_POST['q' . $i . 'r' . $j], 1, $question_id, $member->id);
                         //default of weightage = 1