(PHP 3, PHP 4 >= 4.0.0)

chgrp -- Changes file group


int chgrp ( string filename, mixed group)

Attempts to change the group of the file filename to group (specified by name or number). 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.

Returns TRUE on success, FALSE on failure.

See also chown() and chmod().

Note: This function is not implemented on Windows platforms.