(PHP 4, PHP 5)
filegroup — Gets file group
Gets the file group. The group ID is returned in numerical format, use posix_getgrgid() to resolve it to a group name.
Path to the file.
Returns the group ID of the file, or FALSE in case of an error. The group ID is returned in numerical format, use posix_getgrgid() to resolve it to a group name. Upon failure, FALSE is returned.
Upon failure, an E_WARNING is emitted.
Note: 本函式的結果會被存入緩衝區。詳情參見 clearstatcache()。
自 PHP 5.0.0 起本函式也可被某些 URL wrapper 使用。參考List of Supported Protocols/Wrappers 來看哪些 wrapper 支援 stat() 系列函式的功能。