posix_getpgid

(PHP 4, PHP 5)

posix_getpgid — Get process group id for job control

Opis

int posix_getpgid ( int $pid )

Returns the process group identifier of the process pid .

Parametry

pid: The process id.

Zwracane wartości

Returns the identifier, as an integer.

Przykłady

Przykład #1 Example use of posix_getpgid()


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

Notatki

Informacja: 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().

Zobacz też:

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

add a note User Contributed Notes
posix_getpgid

bozo_z_clown at yahoo dot com
02-Feb-2008 11:07


posix_getpgid() returns NULL if the given pid doesn't exist and can therefore be used to determine if a particular pid refers to an existing process.  Beware, however, that pids are recycled so this method can result in false positives.

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Last updated: Fri, 20 Nov 2009