php man page for posix_getsid

POSIX_GETSID(3) 							 1							   POSIX_GETSID(3)

posix_getsid - Get the current sid of the process

SYNOPSIS
       int posix_getsid (int  $pid)

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

PARAMETERS
	      o $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(3).

RETURN VALUES
	Returns the identifier, as an integer.

EXAMPLES
       Example #1

	      Example use of posix_getsid(3)

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

SEE ALSO
       posix_getpgid(3), posix_setsid(3), POSIX man page GETSID(2).

PHP Documentation Group 													   POSIX_GETSID(3)