xattr_supported

(PECL xattr >= 1.0.0)

xattr_supported — Check if filesystem supports extended attributes

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xattr_supported ( string $filename [, int $flags = 0 ] ) : bool

This functions checks if the filesystem holding the given file supports extended attributes. Read access to the file is required.

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filename

The path of the tested file.

flags

Supported xattr flags
XATTR_DONTFOLLOW Do not follow the symbolic link but operate on symbolic link itself.

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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).

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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 ... */
}

?>

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