Slider_tax
// Register Custom Taxonomy
function slider_taxonomy() {
$labels = array(
'name' => 'Slides',
'singular_name' => 'Slide',
'menu_name' => 'Slider',
'all_items' => 'All Slides',
'parent_item' => 'Slide',
'parent_item_colon' => 'Slide',
'new_item_name' => 'New Slide',
'add_new_item' => 'Add New Slide',
'edit_item' => 'Edit Slide',
'update_item' => 'Update Slide',
'view_item' => 'View Slide',
'separate_items_with_commas' => 'Separate Slides with commas',
'add_or_remove_items' => 'Add or Remove Slides',
'choose_from_most_used' => 'Choose From Most Used',
'popular_items' => 'Popular Slides',
'search_items' => 'Search Slides',
'not_found' => 'Not Found',
'no_terms' => 'No Slides',
'items_list' => 'Slides List',
'items_list_navigation' => 'Slides List Navigation',
);
$args = array(
'labels' => $labels,
'hierarchical' => false,
'public' => true,
'show_ui' => true,
'show_admin_column' => true,
'show_in_nav_menus' => true,
'show_tagcloud' => true,
'show_in_rest' => true,
'rest_base' => 'slides',
);
register_taxonomy( 'slider', array( 'pages', 'posts' ), $args );
}
add_action( 'init', 'slider_taxonomy', 0 );