(PECL)
This functions gets a list of names of extended attributes 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 path of the file.
表格 1. Supported xattr flags
This function returns an array with names of extended attributes.
例子 1. Prints names of all extended attributes of file
<?php$file = 'some_file';$root_attributes = xattr_list($file, XATTR_ROOT);$user_attributes = xattr_list($file);echo "Root attributes: \n";foreach ($root_attributes as $attr_name) { printf("%s\n", $attr_name);}echo "\n User attributes: \n";foreach ($attributes as $attr_name) { printf("%s\n", $attr_name);}?>