$result = $query->fetch_object(); return $result; } function get_collection() { $sql = "SELECT * FROM `tbl_gender` ORDER BY `gender_order` DESC"; $query = $this->conn->query($sql); $row = array(); while ($result = $query->fetch_object()) { array_push($row, $result); } return $row; } } $_ajax = new AJAX_CLASS(); $count = $_ajax->count_collection(); $data = $_ajax->get_collection(); $product_id = filter_var($_POST['product_id'], FILTER_SANITIZE_NUMBER_INT); $_data = $_ajax->data_collection($product_id); echo '<li class="form-group row" id="id-row-collection">'; echo '<label class="col-xs-3 control-label" for="sizegroup">Gender</label>'; echo '<div class="col-xs-9">'; echo '<select class="form-control" id="id-collection" name="gender">'; echo '<option value="">-- Select Gender --</option>'; foreach ($data as $data) { echo '<option value="' . $data->gender_id . '" '; if ($_data->product_gender == $data->gender_id) { echo 'selected="selected"'; } echo '>' . $data->gender_name . '</option>'; }