public function getManufacturerByCategoryID() { if (!isset($_GET['id_category']) || !is_numeric($_GET['id_category'])) { return false; } $categories = new Product(); $res = $categories->getManufacturerByCategoryID($_GET['id_category']); while ($row = PDOQuery::getInstance()->next_row($res)) { //$category_list .= '<li class="manufacturer-list"><a href="product_sale.php?id_manufacturer='.$row['id_manufacturer'].'">'.$row['manufacturer'].'</a></li>'; $category_list .= '{"id_manufacturer": "' . $row['id_manufacturer'] . '", "manufacturer": "' . $row['manufacturer'] . '"},'; } $category_list = '{"success": [' . rtrim($category_list, ',') . ']}'; echo $category_list; }