I'm trying to use the ftp_connect() command to hook up to the FTP server for my site. The FTP functionality is enabled in PHP so that's not the issue.

Here's the code:
$conn_id = ftp_connect($hostname); //where hostname is the proper ftp server

When I try to connect on my local version of application I can connect just fine. However, when I try to connect to the same FTP server on the hosted version of the app (same code), nothing happens. The ftp_connect() doesn't return an error, true/false, and no code past that line gets run. If I specify an invalid port then an error occurs, but connecting to the right host/port never works.

Any thoughts?