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이 문서에서는 PHP 중국어 웹사이트 매뉴얼 풀어 주다
(PECL xattr >= 1.0.0)
xattr_supported — Check if filesystem supports extended attributes
$filename
[, int $flags
= 0
] )This functions checks if the filesystem holding the given file supports extended attributes. Read access to the file is required.
filename
The path of the tested file.
flags
XATTR_DONTFOLLOW | Do not follow the symbolic link but operate on symbolic link itself. |
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.
<?php
$file = 'some_file' ;
if ( xattr_supported ( $file )) {
}
?>