xattr Functions

Bevezetés

The xattr extension allows for the manipulation of extended attributes on a filesystem.

Követelmények

To use xattr, you will need libattr installed. It is available at » https://oss.sgi.com/projects/xfs/.

Note: These functions only work on filesystems that support extended attributes, and have them enabled at mount time. Some common filesystems that support extended attributes are ext2, ext3, reiserfs, jfs, and xfs.

Telepítés

xattr is currently available through PECL » https://pecl.php.net/package/xattr.

If » PEAR is available on your *nix-like system you can use the pear installer to install the xattr extension, by the following command: pear -v install xattr.

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

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

Előre definiált állandók

Az itt listázott állandókat ez a kiterjesztés definiálja, és csak akkor elérhetőek, ha az adott kiterjesztés be van fordítva a PHP-be, vagy dinamikusan betöltött.

XATTR_ROOT (integer)

Set attribute in root (trusted) namespace. Requires root privileges.

XATTR_DONTFOLLOW (integer)

Do not follow the symbolic link but operate on symbolic link itself.

XATTR_CREATE (integer)

Function will fail if extended attribute already exists.

XATTR_REPLACE (integer)

Function will fail if extended attribute doesn't exist.