posix_ctermid

(PHP 4, PHP 5)

posix_ctermid — Get path name of controlling terminal

说明

string posix_ctermid ( void )

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()

返回值

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() .

范例

Example #1 posix_ctermid() example

This example will display the path to the current TTY.

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

参见

posix_ttyname() - Determine terminal device name
posix_get_last_error() - Retrieve the error number set by the last posix function that failed