WP_Posts_List_Table::categories_dropdown( string $post_type )

	protected function categories_dropdown( $post_type ) {
		global $cat;

		/**
		 * Filters whether to remove the 'Categories' drop-down from the post list table.
		 *
		 * @since WP-4.6.0
		 *
		 * @param bool   $disable   Whether to disable the categories drop-down. Default false.
		 * @param string $post_type Post type slug.
		 */
		if ( false !== apply_filters( 'disable_categories_dropdown', false, $post_type ) ) {
			return;
		}

		if ( is_object_in_taxonomy( $post_type, 'category' ) ) {
			$dropdown_options = array(
				'show_option_all' => get_taxonomy( 'category' )->labels->all_items,
				'hide_empty' => 0,
				'hierarchical' => 1,
				'show_count' => 0,
				'orderby' => 'name',
				'selected' => $cat
			);

			echo '<label class="screen-reader-text" for="cat">' . __( 'Filter by category' ) . '</label>';
			wp_dropdown_categories( $dropdown_options );
		}
	}