Set the real group ID of the current process. This is a privileged function and you need appropriate privileges (usually root) on your system to be able to perform this function. The appropriate order of function calls is posix_setgid() first, posix_setuid() last.
Возвращает TRUE в случае успешного завершения или FALSE в случае возникновения ошибки.
| Пред. | Начало | След. |
| posix_seteuid | Уровень выше | posix_setpgid |