xattr_get

Description

This function gets the value of an extended attribute of a file.

Namespace

Parameters

filename

The file from which we get the attribute.

name

The name of the attribute.

flags

XATTR_DONTFOLLOW	Do not follow the symbolic link but operate on symbolic link itself.
XATTR_ROOT	Set attribute in root (trusted) namespace. Requires root privileges.

Return Values

Returns a string containing the value or false if the attribute doesn't exist.

Examples

Checks if system administrator has signed the file

<?php
$file = '/usr/local/sbin/some_binary';
$signature = xattr_get($file, 'Root signature', XATTR_ROOT);

/* ... check if $signature is valid ... */

?>

See Also

• xattr_list()
• xattr_set()
• xattr_remove()