php man page for posix_ctermid

POSIX_CTERMID(3)							 1							  POSIX_CTERMID(3)

posix_ctermid - Get path name of controlling terminal

SYNOPSIS
       string posix_ctermid (void  )

DESCRIPTION
	Generates  a string which is the pathname for the current controlling terminal for the process. On error this will set errno, which can be
       checked using posix_get_last_error(3)

RETURN VALUES
	Upon successful completion, returns string of the pathname to the current controlling terminal. Otherwise FALSE is returned and  errno	is
       set, which can be checked with posix_get_last_error(3).

EXAMPLES
       Example #1

	      posix_ctermid(3) example

	       This example will display the path to the current TTY.

	      <?php
	      echo "I am running from ".posix_ctermid();
	      ?>

SEE ALSO
       posix_ttyname(3), posix_get_last_error(3).

PHP Documentation Group 													  POSIX_CTERMID(3)