I'm having trouble figuring out why when I use fopen to open a URL in 4.3.2 I get different output than in 4.3.1.

I'm using the following to get sport scores from sportline.com, i also put in some troubleshooting code to help me determine the problem.

$url = "http://www.sportsline.com/mlb/box-scoreboards";

$fp=fopen($url,"rb") or die ("<p>Could not Open Sportsline.com</p>");
$handle = fopen("/opt/web/sportsline.txt","a");

$file=fread($fp,600000);
$new=substr($file,0);

fwrite($handle,$new);
fclose($handle);
fclose($fp);

When I run the above script in 4.3.2 I get a filesize of 2434 bytes, when I run the exact same code in 4.3.1, I get a filesize of 10733 bytes.

I've used the exact same configure script parameters for both PHP builds, and the same apache version (2.0.46)

Any assistance would be appreciated!