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posix_ctermid — Returns the terminal path name (POSIX.1, 4.7.1)


string posix_ctermid(void)


The path name of the current terminal on success, or FALSE on error.


Returns the full path name of the current process's controlling terminal. This name is not guaranteed to be unique (a typical example would be /dev/tty); nor is it guaranteed that the process can write to the terminal.


PHP 3.0.13+, PHP 4.0b4+


Example 1063. Getting the name of the controlling terminal

if (FALSE === ($ctermid = posix_ctermid())) {
   echo "Could not get terminal name.\n";
} else {
   echo "The controlling terminal for this process is: '$ctermid'.\n";

PHP Functions Essential Reference. Copyright © 2002 by New Riders Publishing (Authors: Zak Greant, Graeme Merrall, Torben Wilson, Brett Michlitsch). This material may be distributed only subject to the terms and conditions set forth in the Open Publication License, v1.0 or later (the latest version is presently available at The authors of this book have elected not to choose any options under the OPL. This online book was obtained from and is designed to provide information about the PHP programming language, focusing on PHP version 4.0.4 for the most part. The information is provided on an as-is basis, and no warranty or fitness is implied. All persons and entities shall have neither liability nor responsibility to any person or entity with respect to any loss or damage arising from the information contained in this book.

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