posix_getpgid()

(PHP 4, PHP 5, PHP 7)

Get process group id for job control

说明

posix_getpgid(int $pid): int

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 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)