MySQL Error: ModeloFront::getNoticias SELECT * FROM actividades WHERE Visible = 1 AND IdIdioma = 2 AND IdCategoria = AND IdPadre <> ORDER BY Orden DESC LIMIT 3 You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'AND IdPadre <> ORDER BY Orden DESC LIMIT 3' at line 1