Demiurg
а safe_mode_gid не поможет?
safe_mode_gid boolean
By default, Safe Mode does a UID compare check when opening files. If you want to relax this to a GID compare, then turn on safe_mode_gid. Whether to use UID (FALSE) or GID (TRUE) checking upon file access.
-~{}~ 10.06.04 16:10:
вопрос снят - не углядел PHP_INI_SYSTEM