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posix_getsid

(PHP 4, PHP 5, PHP 7)

posix_getsid — Get the current sid of the process

Description

posix_getsid ( int $pid ) : int

Return the session id of the process pid. The session id of a process is the process group id of the session leader.

Parameters

pid: The process identifier. If set to 0, the current process is assumed. If an invalid pid is specified, then false is returned and an error is set which can be checked with posix_get_last_error().

Return Values

Returns the identifier, as an int.

Examples

Example #1 Example use of posix_getsid()

<?php
$pid = posix_getpid();
echo posix_getsid($pid); //8805
?>

See Also

posix_getpgid() - Get process group id for job control
posix_setsid() - Make the current process a session leader
POSIX man page GETSID(2)

© 1997–2020 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/function.posix-getsid.php