(PHP 5 >= 5.2.7, PHP 7) Returns the status error message, system and/or zip messages

(PHP 5 >= 5.2.0, PHP 7, PECL zip >= 1.5.0) Returns the name of an entry using its index

(PHP 7, PECL zip >= 1.13.0) Set the compression method of an entry defined by its name

(PHP 5 >= 5.2.0, PHP 7, PECL zip >= 1.1.0) Undo all changes done in the archive

(PHP 5 >= 5.2.0, PHP 7, PECL zip >= 1.1.0) Adds a file to a ZIP archive from the given path

(PHP 5 >= 5.6.0, PHP 7, PECL zip >= 1.12.4) Set the external attributes of an entry defined by its name

(PHP 5 >= 5.2.0, PHP 7, PECL zip >= 1.5.0) delete an entry in the archive using its index