custom post & taxonomy

add_action( 'init', 'create_prodotti' );

function create_prodotti() {
      $args = array(
        'labels' => post_type_labels( 'Prodotti' ),
        'public' => true,
        'publicly_queryable' => true,
        'show_ui' => true,
        'show_in_menu' => true,
        'query_var' => true,
        'rewrite' => true,
        'capability_type' => 'post',
        'has_archive' => true,
        'hierarchical' => false,
        'menu_position' => null,
		'taxonomy' => array (''),
        'supports' => array('title',
            'editor',
            'author',
            'thumbnail',
            'excerpt',
            'comments',
			'custom-fields' // pannello custom fields
        )
    );

    register_post_type( 'prodotti', $args );
}

function post_type_labels($name) {

    return array(
        'name' => _x( $name, 'post type general name' ),
        'singular_name' => _x( 'Prodotto', 'post type singular name' ),
        'add_new' => __( 'Aggiungi nuovo' ),
        'add_new_item' => __( 'Aggiungi nuovo prodotto'),
        'edit_item' => __( 'Modifica prodotto'),
        'new_item' => __( 'Nuovo prodotto' ),
        'view_item' => __( 'Vedi prodotto' ),
        'search_items' => __( 'Cerca'. $name ),
        'not_found' =>  __( 'Nessun prodotto trovato'),
        'not_found_in_trash' => __( 'Non ci sono ' . $name . ' prodotti nel Cestino' ),
        'parent_item_colon' => ''
    );
}

function add_custom_taxonomies() {
	    // Add new "Locations" taxonomy to Posts
	    register_taxonomy('marchio', 'prodotti', array(
	        // Hierarchical taxonomy (like categories)
	        'hierarchical' => true,
	        // This array of options controls the labels displayed in the WordPress Admin UI
	        'labels' => array(
	            'name' => 'Marchi',
	            'singular_name' => 'Marchio',
	            'search_items' =>  'Cerca Marchio',
	            'all_items' => 'Tutti i Marchi' ,
	            'parent_item' => 'Parent Marchio',
	            'parent_item_colon' => 'Parent Marchio:',
	            'edit_item' => 'Edit Marchio',
	            'update_item' => 'Update Marchio' ,
	            'add_new_item' => 'Nuovo Marchio' ,
	            'new_item_name' => 'New Marchio Name',
	            'menu_name' => 'Marchi',
	        ),
	        // Control the slugs used for this taxonomy
	        'rewrite' => array(
	            'slug' => 'marchio', // This controls the base slug that will display before each term
	            'with_front' => false, // Don't display the category base before "/locations/"
	            'hierarchical' => true,// This will allow URL's like "/locations/boston/cambridge/"
				'query_var' => true,
	        ),
	    ));
	}
	add_action( 'init', 'add_custom_taxonomies', 0 );