xattr_supported --
Check if filesystem supports extended attributes
Description
bool xattr_supported ( string filename [, int flags] )
This functions checks if the filesystem holding the given file supports
extended attributes. Read access to the file is required.
Parameters
filename
The path of the tested file.
flags
Table 1. Supported xattr flags
XATTR_DONTFOLLOW
Do not follow the symbolic link but operate on symbolic link itself.
Return Values
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).
Examples
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 ... */ }
