Dude PHP, ASP etc .. are SSI languages.. (SErver Side Include) y cant donwload the code.. ok yes u could, but you need to have access to te server.. remotly or local ,btw as i said, php and asp, there are also others, are server side includes, what this means? for example
in java scipt:
alert("bsdg33k"); //i'm not sure if it works like this, but is understendable to te exaple..
when you open the browser window.. your browser will compile the java code, and run it, but the language compilation is made on your browser, in PHP and asp that's not the same..
«?
$echo "lol";
?»
the compilation of the script is made on the server side, if u see the source code of the page, you will only see
"lol"
and nothing more...why?
cause the server runs it for you

if u download the php page u must see only HTML and php output's, but i think it is impossible to get the php script
nice source readings