PHP 警告：ftp_login()：先用 USER 登录

Question

I am trying to connect and log in to my FTP server. I connect fine but when i login, ftp_login() returns false and a warning like this:

PHP Warning: ftp_login(): Login with USER first.

My code is below.

$ftp_conn = ftp_ssl_connect($ftp_server) or die("Could not connect to $ftp_server");

echo "Connected to $ftp_server\n";

$login = ftp_login($ftp_conn, $ftp_username, $ftp_userpass);

var_dump($login);
var_dump(error_get_last());

echo "Logged in to $ftp_server\n"; 

Tried to search for answers but not much information on the net.

Please help.

Thank you.

Answer 1

It was a firewall issue. Make sure your FTP Server's firewall allows inbound connection on the port you are trying to connect to. In my case, port 990.

Thanks.