filegroup
(PHP 4, PHP 5)
filegroup — Gets file group
Description
int filegroup
( string $filename
)
Gets the file group. The group ID is returned in numerical format, use posix_getgrgid() to resolve it to a group name.
Parameters
- filename
-
Path to the file.
Return Values
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.
Errors/Exceptions
Upon failure, an E_WARNING is emitted.
Notes
Note: 此函數的結果會被快取。詳細資訊請參考 clearstatcache()。
Tip
As of PHP 5.0.0 this function can also be used with some URL wrappers. Refer to List of Supported Protocols/Wrappers for a listing of which wrappers support stat() family of functionality.