Can't get ImageCreateFromJPEG to work with URLs

Anon

PHP Version 4.0.2

ImageCreateFromJPEG fails when I try to create a JPEG image from a URL. The function works fine when I try it with the same exact image stored locally. I can't find any mention of this in the bugs DB or on the mailing lists.

Here are the values for GD from phpinfo():

GD Support enabled
GD Version 1.6.2 or higher
PNG Support enabled
JPG Support enabled
WBMP Support enabled

Hopefully, I'm just doing something wrong:

* BEGIN CODE *

<?php

$URLImage = "http://www.apple.com/macosx/images/top_osx_beta_folder.jpg";
$localImage = "top_osx_beta_folder.jpg";

if (!$srcImg = ImageCreateFromJPEG($URLImage)) {
echo "Couldn't create image identifier from file \"$URLImage\". \n";
echo "image: \"$srcImg\" \n";
} else {
echo "Successful! Created image identifier from file \"$URLImage\"! \n";
echo "image: \"$srcImg\" \n";
}

echo " \n";

if (!$srcImg = ImageCreateFromJPEG($localImage)) {
echo "Couldn't create image identifier from file \"$localImage\". \n";
echo "image: \"$srcImg\" \n";
} else {
echo "Successful! Created image identifier from file \"$localImage\"! \n";
echo "image: \"$srcImg\" \n";
}

?>

* END CODE *

This is the output the code gives me:

* BEGIN OUTPUT *

Couldn't create image identifier from file "http://www.apple.com/macosx/images/top_osx_beta_folder.jpg".
image: ""

Successful! Created image identifier from file "top_osx_beta_folder.jpg"!
image: "Resource id #1"

* END OUTPUT *

Try it for yourself. Let me know what you find out and if you have a fix. This also happens for the ImageCreateFromPNG function.

Thanks for your time,
-David King