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CLXXVI. xattr Functions
Úvod
The xattr extension allows for the manipulation of extended attributes on a filesystem.
Požadavky
To use xattr, you will need libattr installed. It is available at https://oss.sgi.com/projects/xfs/.
Poznámka: 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.
Instalace
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:
Předdefinované konstanty
Tyto konstanty jsou definovány tímto rozšířením a budou k dispozici pouze tehdy, bylo-li rozšíření zkompilováno společně s PHP nebo dynamicky zavedeno za běhu.
- 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.
- Obsah
- xattr_get -- Get an extended attribute
- xattr_list -- Get a list of extended attributes
- xattr_remove -- Remove an extended attribute
- xattr_set -- Set an extended attribute
- xattr_supported -- Check if filesystem supports extended attributes
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