posix_getpgid
(PHP 3 >= 3.0.10, PHP 4, PHP 5)
posix_getpgid -- Get process group id for job control
说明
int
posix_getpgid ( int pid )
Returns the process group identifier of the process
pid.
返回值
Returns the identifier, as an integer.
注释
注意:
This is not a POSIX function, but is common on BSD and System V
systems. If your system does not support this function at system
level, this PHP function will always return FALSE.