WP_Screen

15#[AllowDynamicProperties]16final class WP_Screen {17	/**18	 * Any action associated with the screen.19	 *20	 * 'add' for *-add.php and *-new.php screens. Empty otherwise.21	 *22	 * @since 3.3.023	 * @var string24	 */25	public $action;26 27	/**28	 * The base type of the screen.29	 *30	 * This is typically the same as `$id` but with any post types and taxonomies stripped.31	 * For example, for an `$id` of 'edit-post' the base is 'edit'.32	 *33	 * @since 3.3.034	 * @var string35	 */36	public $base;37 38	/**39	 * The number of columns to display. Access with get_columns().40	 *41	 * @since 3.4.042	 * @var int43	 */44	private $columns = 0;45 46	/**47	 * The unique ID of the screen.48	 *49	 * @since 3.3.050	 * @var string51	 */52	public $id;53 54	/**55	 * Which admin the screen is in. network | user | site | false56	 *57	 * @since 3.5.058	 * @var string59	 */60	protected $in_admin;61 62	/**63	 * Whether the screen is in the network admin.64	 *65	 * Deprecated. Use in_admin() instead.66	 *67	 * @since 3.3.068	 * @deprecated 3.5.069	 * @var bool70	 */71	public $is_network;72 73	/**74	 * Whether the screen is in the user admin.75	 *76	 * Deprecated. Use in_admin() instead.77	 *78	 * @since 3.3.079	 * @deprecated 3.5.080	 * @var bool81	 */82	public $is_user;83 84	/**85	 * The base menu parent.86	 *87	 * This is derived from `$parent_file` by removing the query string and any .php extension.88	 * `$parent_file` values of 'edit.php?post_type=page' and 'edit.php?post_type=post'89	 * have a `$parent_base` of 'edit'.90	 *91	 * @since 3.3.092	 * @var string|null93	 */94	public $parent_base;