What is PhpDig?
PhpDig is a PHP MySQL based
Web Spider & Search Engine.



ftp_cdup — Changes the current directory to the parent directory.


bool ftp_cdup();
: FTP stream



This function sends a "CDUP" command to the server. Performs the same function as ftp_chdir($ftpStream, "..").


PHP 3>= 3.0.13, PHP 4 >= 4.0b4


Example 356. Move to child directory then back to parent

// Define directory to which to change
$subdir = "oneleveldown";

// Turn on $php_errormsg (PHP 4.0RC1 and up)
ini_set('track_errors', true);

// Connect to server, or complain to user and die
$ftpStream = @ ftp_connect("my.ftp.server")
   or die("Couldn't connect to FTP server.");

// Log in to server, or complain to user and die
$loginResult = @ ftp_login($ftpStream, "username", "password")
   or die("Couldn't log in to FTP server: $php_errormsg");

// Change to directory named 'oneleveldown' 
@ ftp_chdir($ftpStream, $subdir)
   or die("Couldn't change to directory '$subdir': $php_errormsg");

print "Directory before ftp_cdup(): " . @ ftp_pwd($ftpStream) . "<br>\n";

@ ftp_cdup($ftpStream)
   or die("Couldn't change to parent directory: $php_errormsg");

print "Directory after ftp_cdup(): " . @ ftp_pwd($ftpStream) . "<br>\n";

// Close the connection

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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