posix_setgidDescriptionbool posix_setgid ( int gid )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. 若果成功則返回 TRUE,失敗則返回 FALSE。 | ||