ftp woes

[hurricane]

I'm trying to set up ftp on my website. I can successfully log in, put, get, change directories using an ftp client. When I try to ftp on my website from within the server, I get this error;

Warning: php_hostconnect: connect failed in uploadpics.php on line 3

and here's the code I'm using

<?php
//set up basic connection
$conn_id = ftp_connect("localhost");

// login with username and password
$login_result = ftp_login($conn_id, "site", "pword"); //line 3

// check connection
if ((!$conn_id) || (!$login_result)) {
       echo "FTP connection has failed!";
       echo "Attempted to connect to $ftp_server for user $ftp_user_name";
       exit;
   } else {
       echo "Connected to $ftp_server, for user $ftp_user_name";
   } 
?>

should I be using an IP, the full url, or should it be localhost? Could the server be blocking all attempts to login from within the server"

[Installer]

What happens when you try "127.0.0.1" or the server name or IP (with port)?

You can try this to be more sure of where the problem is:

$conn_id = ftp_connect("localhost")
    or die('ftp_connect() failed.'); 

$login_result = ftp_login($conn_id, "site", "pword")
    or die('ftp_login() failed.'); 

[hurricane]

Tried both of your suggestions. I still get the same error...