(PHP 3 <= 3.0.18, 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; otherwise returns FALSE.

See also chown() and chmod().

Note: This function is not implemented on Windows platforms.