xattr_list
(PECL)
xattr_list --
Get a list of extended attributes
Description
array
xattr_list ( string filename [, int flags] )
This functions gets a list of names of extended attributes of a file.
Extended attributes have two different namespaces: user
and root namespace. User namespace is available for all users while root namespace
is available only for user with root privileges. xattr operates on user namespace
by default, but you can change that using flags argument.
Parameters
- filename
The path of the file.
- flags
Table 1. Supported xattr 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
This function returns an array with names of extended attributes.
Examples
Example 1. Prints names of all extended attributes of file
<?php
$file = 'some_file';
$root_attributes = xattr_list($file, XATTR_ROOT);
$user_attributes = xattr_list($file);
echo "Root attributes: \n";
foreach ($root_attributes as $attr_name) {
printf("%s\n", $attr_name);
}
echo "\n User attributes: \n";
foreach ($attributes as $attr_name) {
printf("%s\n", $attr_name);
}
?>
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