The xattr extension allows for the manipulation of extended attributes on a filesystem.
To use xattr, you will need libattr installed. It is available
at http://oss.sgi.com/projects/xfs/.
Замечание:
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.
xattr is currently available through PECL
http://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:
Пример 1. xattr install by hand gunzip xattr-xxx.tgz
tar -xvf xattr-xxx.tar
cd xattr-xxx
phpize
./configure && make && make install |
|
Перечисленные ниже константы определены данным расширением и могут быть
доступны только в том случае, если PHP был собран с
поддержкой этого расширения или же в том случае, если
данное расширение подгружается во время выполнения.
- 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.