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<posix_accessposix_eaccess>
^POSIX FunctionsLast updated: Mon, 26 Oct 2026

posix_ctermid

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

posix_ctermid — Get path name of controlling terminal

Description

function posix_ctermid(): string|false

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()

Parameters

This function has no parameters.

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().

Examples

Example #1 posix_ctermid() example

This example will display the path to the current TTY. 

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

See Also


<posix_accessposix_eaccess>
^POSIX FunctionsLast updated: Mon, 26 Oct 2026