function check_old_password() { $user_service = new User_service(); $user_model = new User_model(); $user_model->set_id($this->session->userdata('USER_ID')); $dbpw = $user_service->checkOldPass($user_model); $typedOldPassword = $this->input->post('old_password', TRUE); if ($dbpw == md5($typedOldPassword)) { echo 1; } else { echo 0; } }