public function getRandQuestion($level, $Subject)
{
$pdo = Database::getDB();
$stmt = $pdo->prepare("SELECT * FROM brain_Question WHERE level = ? AND subject = ? ORDER BY Rand() LIMIT 5");
$stmt->execute(array($level, $Subject));
$result = $stmt->fetchAll();
$brain_RQuestions = array();
foreach ($result as $row) {
$brain_Question = new brain_Question();
$brain_Question->setQid($row['bid']);
$brain_Question->setLevel($row['level']);
$brain_Question->setSubject($row['subject']);
$brain_RQuestions[] = $brain_Question;
}
return $brain_RQuestions;
}
