PHP远程上传文件到FTP

PHP远程上传文件到FTP，可以用来储存文件，备份数据

/********ftp上传*******/
$ftp_server = "idcerdangjiade.gotoip1.com"; //ftp地址
$ftp_user = "idcerdangjiade"; //ftp用户名
$ftp_pass = "hjl7233163"; //ftp密码
$conn_id = ftp_connect($ftp_server) or die("不能链接到服务器 $ftp_server");
$login_result = ftp_login($conn_id, $ftp_user, $ftp_pass);
if ((!$conn_id) || (!$login_result)) {
	echo "不能连接到用户名是" . $ftp_user . "的服务器" . $ftp_server . "";
	exit;
}
$source_file = $filepath . $randname;  //源地址
$destination_file = "wwwroot/uploads/".basename($source_file);  //目标地址
$upload = ftp_put($conn_id, $destination_file, $source_file, FTP_BINARY) or die("Couldn't connect to $ftp_server");
if (!$upload) {
	echo "FTP 上传失败";
} else {
	echo "<script type='text/javascript'>alert('成功上传文件".$source_file."');history.back();</script>";
}
ftp_close($conn_id);

/********ftp上传over*******/