PHP-Handbuch: Check if filesystem supports extended attributes

Beschreibung

bool xattr_supported ( string $filename [, int $flags = 0 ] )

This functions checks if the filesystem holding the given file supports extended attributes. Read access to the file is required.

Parameter-Liste

filename

The path of the tested file.

flags

**Supported xattr flags**
`XATTR_DONTFOLLOW`	Do not follow the symbolic link but operate on symbolic link itself.

Rückgabewerte

This function returns TRUE if filesystem supports extended attributes, FALSE if it doesn't and NULL if it can't be determined (for example wrong path or lack of permissions to file).

Beispiele

Beispiel #1 xattr_supported example

The following code checks if we can use extended attributes.


<?php
$file = 'some_file';

if (xattr_supported($file)) {
    /* ... make use of some xattr_* functions ... */
}

?>

Siehe auch

xattr_get
xattr_list