db->get_where('enroll' , array('class_id' => $class_id_from , 'year' => $running_year))->result_array(); foreach($students as $row): $query = $this->db->get_where('enroll' , array('student_id' => $row['student_id'],'year' => $promotion_year));?>

db->get_where('student' , array('student_id' => $row['student_id']))->row()->name;?>	db->get_where('section' , array('section_id' => $row['section_id']))->row()->name; ?>		num_rows() < 1):?> crud_model->get_class_name($class_id_to);?> crud_model->get_class_name($class_id_from);?> num_rows() > 0):?>