posix_getpgid
(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 或者在失败时返回 FALSE.
参数
- pid
-
The process id.
返回值
Returns the identifier, as an integer.
范例
Example #1 Example use of posix_getpgid()
<?php
$pid = posix_getppid();
echo posix_getpgid($pid); //35
?>
注释
Note:
This is a not POSIX function, but is common on BSD and System V systems. If the system does not support this function, then it will not be included at compile time. This may be checked with function_exists().
参见
- posix_getppid() - Return the parent process identifier
- man page SETPGID(2)
