FTP cdup Function in PHP

The ftp_cdup() function changes the current directory to the parent directory.

Syntax

ftp_cdup(con);

Parameters

• con − The FTP connection

Return

The ftp_cdup() function returns TRUE on success or FALSE on failure.

Example

The following is an example wherein we are updating the current directory to parent directory −

<?php
   $ftp_server="192.168.0.4";
   $ftp_user="amit";
   $ftp_pass="tywg61gh";
   $con = ftp_connect($ftp_server);
   $res = ftp_login($con, $ftp_user, $ftp_pass);
   ftp_chdir($con, 'demo');
   echo ftp_pwd($con); /
   if (ftp_cdup($con)) {
      echo "Directory changed!
";
   } else {
      echo "Directory change not successful!
";
   }
   echo ftp_pwd($con);
   ftp_close($con);
?>