item_spacing ) && 'discard' === $args->item_spacing ) { $t = ''; $n = ''; } else { $t = "\t"; $n = "\n"; } $indent = ( $depth ) ? str_repeat( $t, $depth ) : ''; $classes = empty( $item->classes ) ? array() : (array) $item->classes; $classes[] = 'menu-item-' . $item->ID; // Filters the arguments for a single nav menu item $args = apply_filters( 'nav_menu_item_args', $args, $item, $depth ); // Filters the CSS class(es) applied to a menu item's list item element $class_names = join( ' ', apply_filters( 'nav_menu_css_class', array_filter( $classes ), $item, $args, $depth ) ); $class_names = $class_names ? ' class="' . esc_attr( $class_names ) . '"' : ''; // Filters the ID applied to a menu item's list item element $id = apply_filters( 'nav_menu_item_id', 'menu-item-'. $item->ID, $item, $args, $depth ); $id = $id ? ' id="' . esc_attr( $id ) . '"' : ''; $output .= $indent . ''; // it would be better to enter the class in Appearance -> Menus -> Screen Options -> CSS classes // $output .= $indent . '