protected function del_dbcategory($id) { $pdo = parent::get_connect2db(); try { $sql = 'DELETE FROM articlecategory WHERE categoryid=:id'; $s = $pdo->prepare($sql); $s->bindValue(':id', $id); $s->execute(); } catch (PDOException $e) { $error = 'Error in deleting articles from category: ' . $e->getMessage(); die($error); } try { $sql = 'DELETE FROM category WHERE id=:id'; $s = $pdo->prepare($sql); $s->bindValue(':id', $id); $s->execute(); } catch (PDOException $e) { $error = 'Error in deleting category: ' . $e->getMessage(); die($error); } }