xattr_supported
(PECL xattr >= 1.0.0)
xattr_supported — Check if filesystem supports extended attributes
Descrierea
xattr_supported
( string
$filename
, int $flags = 0
) : boolThis functions checks if the filesystem holding the given file supports extended attributes. Read access to the file is required.
Parametri
-
filename -
The path of the tested file.
-
flags -
Supported xattr flags XATTR_DONTFOLLOWDo not follow the symbolic link but operate on symbolic link itself.
Valorile întoarse
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).
Exemple
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 ... */
}
?>
A se vedea și
- xattr_get() - Get an extended attribute
- xattr_list() - Get a list of extended attributes
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