posix_getpgid

(PHP 4, PHP 5, PHP 7)

posix_getpgid — Get process group id for job control

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posix_getpgid ( int $pid ) : int

Returns the process group identifier of the process pid ������ʧ��ʱ���� FALSE.

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pid

The process id.

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Returns the identifier, as an integer.

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Example #1 Example use of posix_getpgid()

<?php
$pid = posix_getppid();
echo posix_getpgid($pid); //35
?>

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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().

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  • posix_getppid() - Return the parent process identifier
  • man page SETPGID(2)