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posix_getlogin — Get the current user name (POSIX.1, 4.2.4).


string posix_getlogin(void)


The login name of the current user, or FALSE on error.


This function attempts to determine the username (login) of the user logged in to the controlling terminal. If the attempt fails--for instance, if PHP is running as a web module and there is no real login--FALSE will be returned.


PHP 3.0.13+, PHP 4.0b4+


Example 1071. Getting the current login

if (!$login = posix_getlogin()) {
    echo "Could not get login.\n";
} else {
    echo "Current login: $login\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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