xattr_supported
(PECL xattr >= 1.0.0)
xattr_supported — Check if filesystem supports extended attributes
Опис
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.
Параметри
-
filename -
The path of the tested file.
-
flags -
Supported xattr flags XATTR_DONTFOLLOWDo not follow the symbolic link but operate on symbolic link itself.
Значення, що повертаються
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).
Приклади
Приклад #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 ... */
}
?>
Прогляньте Також
- xattr_get() - Get an extended attribute
- xattr_list() - Get a list of extended attributes
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