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This document uses PHP Chinese website manual Release
(PECL xattr >= 0.9.0)
xattr_remove — Remove an extended attribute
$filename
, string $name
[, int $flags
= 0
] )This function removes an extended attribute of a file.
扩展的属性有两种 不同的命名空间:user
和 root。user 命名空间对所有用户均有效,而 root
命名空间仅对拥有 root 权限的用户有效。
xattr 默认在 user 命名空间上操作,但可使用
flags
参数进行更改。
filename
The file from which we remove the attribute.
name
The name of the attribute to remove.
flags
XATTR_DONTFOLLOW | Do not follow the symbolic link but operate on symbolic link itself. |
XATTR_ROOT | Set attribute in root (trusted) namespace. Requires root privileges. |
成功时返回 TRUE
, 或者在失败时返回 FALSE
。
Example #1 Removes all extended attributes of a file
<?php
$file = 'some_file' ;
$attributes = xattr_list ( $file );
foreach ( $attributes as $attr_name ) {
xattr_remove ( $file , $attr_name );
}
?>