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# CXXII. Rar Functions

# Introduzione

Rar is a powerful and effective archiver created by Eugene Roshal. This extension gives you possibility to read Rar archives but doesn't support writing Rar archives, because this is not supported by UnRar library and is directly prohibited by it's license.

More information about Rar and UnRar can be found at http://www.rarlabs.com/.

# Requisiti

Non sono necessarie librerie esterne per utilizzare questo modulo.

# Configurazione di Runtime

Questa estensione non definisce alcuna direttiva di configurazione in `php.ini`

# Installazione

Rar is currently available through PECL http://pecl.php.net/package/rar.

Also you can use the pear installer to install the Rar extension, using the following command: pear -v install rar.

You can always download the tar.gz package and install Rar by hand:

Esempio 1. Rar installation

    gunzip rar-xxx.tgz
    tar -xvf rar-xxx.tar
    cd rar-xxx
    phpize
    ./configure && make && make install

Windows users can download the extension dll `php_rar.dll` here: http://snaps.php.net/win32/PECL_STABLE/.

# Tipi di risorse

There is one resource used in Rar extension: a file descriptor returned by rar_open().

# Costanti predefinite

`RAR_HOST_MSDOS` (integer)

`RAR_HOST_OS2` (integer)

`RAR_HOST_WIN32` (integer)

`RAR_HOST_UNIX` (integer)

`RAR_HOST_BEOS` (integer)

# Esempi

Esempio 2. Rar extension overview example

`<?php $rar_file = rar_open('example.rar') or die("Can't open Rar archive"); $entries = rar_list($rar_file); foreach ($entries as $entry) { echo 'Filename: ' . $entry->getName() . "\n"; echo 'Packed size: ' . $entry->getPackedSize() . "\n"; echo 'Unpacked size: ' . $entry->getUnpackedSize() . "\n"; $entry->extract('/dir/extract/to/'); } rar_close($rar_file); ?>`

This example opens a Rar file archive and extracts each entry to the specified directory.

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radius_strerror | Risali | rar_close