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xattr_supported

xattr_supported

(PECL)

xattr_supported --  Check if filesystem supports extended attributes

Popis

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.

Seznam parametrů

filename

The path of the tested file.

flags

Tabulka 1. Supported xattr flags

XATTR_DONTFOLLOWDo not follow the symbolic link but operate on symbolic link itself.

Návratové hodnoty

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).

Příklady

Příklad 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 ... */
}

?>