posix_getsid()

(PHP 4, PHP 5, PHP 7)

Get the current sid of the process

说明

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.

参数

$pid

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

返回值

Returns the identifier, as an integer.

范例

Example use of posix_getsid()

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

参见

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