<? $fp = fopen("$url", "rb"); // read binary file
while (!feof($fp)) {
$img = fread($fp, 4096); }
fclose($fp);
$fp = fopen("$dest","w"); // save binary file
fputs($fp, "$img");
fclose($fp); ?>

Using Windows98 with EasyPHP 1.3, ALL characters ASCII(10) found in the file become ASCII(10) with a NEW LINE after !
But using another platform like unix (I tested the script at ovh.org), nothing changed.

I tried with the "r" and the "rb" argument in fopen but it didn't work.