PHPCon Poland 2024


(PECL xattr >= 0.9.0)

xattr_list Get a list of extended attributes


xattr_list(string $filename, int $flags = 0): array

This functions gets a list of names of extended attributes of a file.

Extended attributes have two different namespaces: user and root. The user namespace is available to all users, while the root namespace is available only to users with root privileges. xattr operates on the user namespace by default, but this can be changed with the flags parameter.



The path of the file.


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.


Example #1 Prints names of all extended attributes of file

= 'some_file';
$root_attributes = xattr_list($file, XATTR_ROOT);
$user_attributes = xattr_list($file);

"Root attributes: \n";
foreach (
$root_attributes as $attr_name) {
printf("%s\n", $attr_name);

"\n User attributes: \n";
foreach (
$attributes as $attr_name) {
printf("%s\n", $attr_name);


See Also

add a note

User Contributed Notes

There are no user contributed notes for this page.
To Top