WP_Upgrader

51#[AllowDynamicProperties]52class WP_Upgrader {53 54	/**55	 * The error/notification strings used to update the user on the progress.56	 *57	 * @since 2.8.058	 * @var array $strings59	 */60	public $strings = array();61 62	/**63	 * The upgrader skin being used.64	 *65	 * @since 2.8.066	 * @var Automatic_Upgrader_Skin|WP_Upgrader_Skin $skin67	 */68	public $skin = null;69 70	/**71	 * The result of the installation.72	 *73	 * This is set by WP_Upgrader::install_package(), only when the package is installed74	 * successfully. It will then be an array, unless a WP_Error is returned by the75	 * {@see 'upgrader_post_install'} filter. In that case, the WP_Error will be assigned to76	 * it.77	 *78	 * @since 2.8.079	 *80	 * @var array|WP_Error $result {81	 *     @type string $source             The full path to the source the files were installed from.82	 *     @type string $source_files       List of all the files in the source directory.83	 *     @type string $destination        The full path to the installation destination folder.84	 *     @type string $destination_name   The name of the destination folder, or empty if `$destination`85	 *                                      and `$local_destination` are the same.86	 *     @type string $local_destination  The full local path to the destination folder. This is usually87	 *                                      the same as `$destination`.88	 *     @type string $remote_destination The full remote path to the destination folder89	 *                                      (i.e., from `$wp_filesystem`).90	 *     @type bool   $clear_destination  Whether the destination folder was cleared.91	 * }92	 */93	public $result = array();94 95	/**96	 * The total number of updates being performed.97	 *98	 * Set by the bulk update methods.99	 *100	 * @since 3.0.0101	 * @var int $update_count102	 */103	public $update_count = 0;104 105	/**106	 * The current update if multiple updates are being performed.107	 *108	 * Used by the bulk update methods, and incremented for each update.109	 *110	 * @since 3.0.0111	 * @var int112	 */113	public $update_current = 0;114 115	/**116	 * Stores the list of plugins or themes added to temporary backup directory.117	 *118	 * Used by the rollback functions.119	 *120	 * @since 6.3.0121	 * @var array122	 */123	private $temp_backups = array();124 125	/**126	 * Stores the list of plugins or themes to be restored from temporary backup directory.127	 *128	 * Used by the rollback functions.129	 *130	 * @since 6.3.0