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PHP Manual :: xattr_supported

xattr_set || xdiff || xattr Functions || PHP Manual

(PECL xattr >= 1.0.0)

xattr_supported Check if filesystem supports extended attributes


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.



The path of the tested file.


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).


Example #1 xattr_supported() example

The following code checks if we can use extended attributes.


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


See Also

xattr_set || xdiff || xattr Functions || PHP Manual
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