<?php

$LocalfileName = 'file.php';
$ServerfileName = 'file.php';
$ftp_server="server.ru";
$ftp_username="ftp логин";
$ftp_userpass="ftp пароль";

$conn = ftp_connect($ftp_server);

$login_result = ftp_login($conn, $ftp_username, $ftp_userpass);


if (ftp_get($conn, $LocalfileName, $ServerfileName, FTP_BINARY)) {
    echo "Файл  $LocalfileName n";
}
else {
    echo "Ошибкаn";
}

ftp_close($conn);

?>