public function update($id)
{
$conn = $this->db->getConn();
$student = new StudentDTO();
$sql = 'SELECT * FROM students WHERE id="' . $id . '"';
$result = $conn->query($sql)->fetch_assoc();
// echo '<pre>'; print_r($result);die;
$student->setId($result['id']);
$student->setFirstname($result['firstname']);
$student->setLastname($result['lastname']);
$student->setAge($result['age']);
$student->setBirthday($result['bday']);
$student->setEmail($result['email']);
$student->setSex($result['sex']);
$student->setAbout($result['message']);
return $result;
}
