note 15804 added to function.posix-getpwnam

User and group functions do not work on recent Redhat systems since these functions are based on /etc/group file but new redhat does not put group members' list into this file. Instead you need to examine /etc/passwd file and find members of a group by checking group id. -- http://www.php.net/manual/en/function.posix-getpwnam.php http://master.php.net/manage/user-notes.php?action=edit+15804 http://master.php.net/manage/user-notes.php?action=delete+15804 http://master.php.net/manage/user-notes.php?action=reject+15804