(PECL xattr >= 1.0.0)
xattr_supported — Check if filesystem supports extended attributes
This functions checks if the filesystem holding the given file supports extended attributes. Read access to the file is required.
The path of the tested file.
| XATTR_DONTFOLLOW | Do not follow the symbolic link but operate on symbolic link itself. |
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).
Example #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 ... */
}
?>