PHP. Руководство по PHP. 2005
posix_getgrgid
posix_getgrgid
Description
array posix_getgrgid (int gid)Returns an array of information about a group and
FALSE on failure. If gid isn't a number
then NULL is returned and an E_WARNING
level error is generated.
Замечание:
As of PHP 4.2.0, members is returned as an array of member
usernames in the group. Before this time it was simply an
integer (the number of members in the group) and the member
names were returned with numerical indices.
See also posix_getegid(),
stat(), and
posix_getgid
posix_getgrnam