26      * Open an existing archive file for reading
28      * @param string $file
31     abstract public function open($file);  argument
39      * Reopen the file with open() again if you want to do additional operations
49 …* found in the archive file, similar to the --strip-components feature of GNU tar. This is trigger…
60 …* The archive is closed afterwards. Reopen the file with open() again if you want to do additional…
72      * Create a new archive file
74      * If $file is empty, the archive file will be created in memory
76      * @param string $file
78     abstract public function create($file = '');  argument
81      * Add a file to the current archive using an existing file in the filesystem
83      * @param string          $file     path to the original file
87     abstract public function addFile($file, $fileinfo = '');  argument
90      * Add a file to the current archive using the given $data as content
93      * @param string          $data     binary content of the file to add
99      * Close the archive, close all file handles
117      * let the library work on the new file directly.
119      * @param string $file
121     abstract public function save($file);  argument
124      * Set a callback function to be called whenever a file is added or extracted.