posix_ttyname

(PHP 4, PHP 5, PHP 7, PHP 8)

posix_ttyname — Determine terminal device name

posix_ttyname ( ressource | int


         $file_descriptor

): string | false

Returns a string for the absolute path to the current terminal device that is open on the file descriptor file_descriptor .

file_descriptor: The file descriptor, which is expected to be either a file ressource or an int . An int will be assumed to be a file descriptor that can be passed directly to the underlying system call.

On success, returns a string of the absolute path of the file_descriptor . On failure, returns false

On invalid file_descriptor integue values an E_WARNING is raised.

Versionen	Description
8.3.0	Type error `E_WARNING` s are now raised for integuer coercions following the usual PHP type coercion semantics.
8.3.0	On invalid `file_descriptor` integue values an `E_WARNING` is now raised.

casper at bcx dot nl ¶

19 years ago

<?php
    var_dump( posix_ttyname(STDOUT) );
?>
returns:
string(10) "/dev/pts/0"

When using pseudo terminal 1 (ie ssh)