# chgrp

(PHP 4, PHP 5)

chgrp — Changes file group

### Description

bool chgrp ( string `$filename` , mixed `$group` )

Attempts to change the group of the file `filename` to `group` .

Only the superuser may change the group of a file arbitrarily; other users may change the group of a file to any group of which that user is a member.

### Parameters

`filename`

  Path to the file.

`group`

  A group name or number.

### Return Values

Returns `TRUE` on success or `FALSE` on failure.

### Notes

> Note: This function will not work on remote files as the file to be examined must be accessible via the servers filesystem.

> Note: When safe mode is enabled, PHP checks whether the files or directories you are about to operate on have the same UID (owner) as the script that is being executed.

### See Also

- chown()
- chmod()