Php/docs/function.posix-getsid

• PHP Manual
• POSIX 函数
• Get the current sid of the process

posix_getsid

(PHP 4, PHP 5, PHP 7)

posix_getsid — 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 pid is 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 int.

范例

Example #1 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)