ftp_connect error w/ 4.3.4RC1

I get the following error when running a script from CRON using PHP
4.3.4RC1 on FreeBSD

(CRON statement)

/usr/local/bin/php -q /usr/local/www/data.default/crm/parsecdr.php

PHP Warning: ftp_connect(): php_network_getaddresses: getaddrinfo
failed: No address associated with hostname in
/usr/local/www/data.default/crm/parsecdr.php on line 36

// ftp variables
$ftp_server = "rc.server.name";
$ftp_user = "user";
$ftp_pass = "pass";

// connect to ftp server
$ftpc = ftp_connect($ftp_server); <---- LINE 36

I have searched everywhere, inlcuding bug reports that lead nowhere. Can
anyone point me in the right direction? (I had no problems with this on
previous versions of PHP and this has cropped up since the upgrade.)

TIA and Happy Holidays!