ไม่สามารถ get file จาก ftp server มาไว้ใน Local path

<?php
// connect and login to FTP server
$ftp_server = "192.168.1.165";
$ftp_conn = ftp_connect($ftp_server) or die("Could not connect to $ftp_server");
$login = ftp_login($ftp_conn, "Win7", "123456");

$server_file = "/22.txt";

// open local file to write to
$local_file = "C:\Users\win7\Desktop\test\local.txt";
//$fp = fopen($local_file,"w");

// download server file and save it to open local file
if (ftp_get($ftp_conn, $local_file, $server_file, FTP_ASCII, 0))
  {
  echo "Successfully written to $local_file.";
  }
else
  {
  echo "Error downloading $server_file.";
  }

// close connection and file handler
ftp_close($ftp_conn);
fclose($fp);
?>