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(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);
}

?>

Related Function(s)

xattr_get()