posix_getgid
(PHP 3 >= 3.0.10, PHP 4, PHP 5)
posix_getgid -- Return the real group ID of the current process
说明
int
posix_getgid ( void )
Return the numeric real group ID of the current process. See also
posix_getgrgid() for information on how to
convert this into a useable group name.
返回值
Returns the identifier, as an integer.