// define some variables
$local_file = 'local.zip';
$server_file = 'server.zip';
// connect to the ftp server
$conn_id = ftp_connect($ftp_server);
$login_result = ftp_login($conn_id, $ftp_user_name, $ftp_user_pass);
// try to download
if (ftp_get($conn_id, $local_file, $server_file, ftp_BINARY)) {
echo "Successfully written to $local_file\n";
} else {
echo "There was a problem\n";
}