xattr_supported

(no version information, might be only in CVS)

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.

Parametre

filename

The path of the tested file.

flags

Tabuľka 1. Supported xattr flags

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

Vrátené 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).

Príklady

Príklad 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 ... */
}

?>

Tiež pozri

xattr_get()
xattr_list()