(PECL xattr >= 0.9.0)
xattr_remove — Remove an extended attribute
This function removes an extended attribute of a file.
扩展的属性有两个不同的名字空间:user 和 root 名字空间。user 名字空间对所有用户均有效,而 root 名字空间仅对拥有 root 权限的用户有效。xattr 默认在 user 名字空间上进行操作,但是可以使用 flags 参数进行更改。
The file from which we remove the attribute.
The name of the attribute to remove.
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. |
如果成功则返回 TRUE,失败则返回 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);
}
?>