(PHP 4, PHP 5, PHP 7, PHP 8)
posix_setpgid — Set process group id for job control
$process_id, int $process_group_id): bool
Let the process process_id join the process group
process_group_id.
process_idThe process id.
process_group_idThe process group id.
成功时返回 true， 或者在失败时返回 false。