(PHP 4, PHP 5, PHP 7)
ftp_mkdir — Creates a directory
$ftp_stream
   , string $directory
   ) 
   Creates the specified directory on the FTP server.
  
ftp_streamThe link identifier of the FTP connection.
directoryThe name of the directory that will be created.
   Returns the newly created directory name on success or FALSE on error.
  
Example #1 ftp_mkdir() example
<?php
$dir = 'www';
// set up basic connection
$conn_id = ftp_connect($ftp_server);
// login with username and password
$login_result = ftp_login($conn_id, $ftp_user_name, $ftp_user_pass);
// try to create the directory $dir
if (ftp_mkdir($conn_id, $dir)) {
 echo "successfully created $dir\n";
} else {
 echo "There was a problem while creating $dir\n";
}
// close the connection
ftp_close($conn_id);
?>