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.
Vrne TRUE ob uspehu ali FALSE ob napaki.
Opomba: This function will not work on remote files as the file to be examined must be accessible via the servers filesystem.
Opomba: Ée PHP deluje v varnem načinu (safe mode), preveri če imajo datoteke/imeniki, ki jih boste uporabljali, isti UID kot skripta, ki se izvaja.