posix_ctermid
(PHP 4, PHP 5, PHP 7, PHP 8)
posix_ctermid — Get path name of controlling terminal
Description
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_ttyname() - Determine terminal device name
- posix_get_last_error() - Retrieve the error number set by the last posix function that failed
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