12-13-2016
filesystem inconsistency? Or just the wrong file?
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LEARN ABOUT PHP
xattr_supported
XATTR_SUPPORTED(3) 1 XATTR_SUPPORTED(3)
xattr_supported - Check if filesystem supports extended attributes
SYNOPSIS
bool xattr_supported (string $filename, [int $flags])
DESCRIPTION
This functions checks if the filesystem holding the given file supports extended attributes. Read access to the file is required.
PARAMETERS
o $filename
- The path of the tested file.
o $flags
-
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(3) 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 ... */
}
?>
SEE ALSO
xattr_get(3), xattr_list(3).
PHP Documentation Group XATTR_SUPPORTED(3)