<?php $document_number_a = array(null); $user_supplier_object = []; if (!empty($_GET['user_id'])) {  $user_id_h = $_GET['user_id'];  $user = ino_user::find_by_id($user_id_h);  $$class->username = $user->username;  $$class->first_name = $user->first_name;  $$class->last_name = $user->last_name;  $user_supplier_object = user_supplier::find_by_userid($user_id_h);  }  else {  $user_id_h = null; }  if(empty($user_supplier_object)){   $user_supplier_object = array(new user_supplier); }?>