[thelist] is php installed?

I've put the standard hello world php file up at centralsq.com/hello.php

I expected to either see "hello world" or

<?php echo "Hello World<p>"; ?>

but instead I got

parse error in /export/emc-cust01/0/4/5/centra31/hello.php on line 3

is this to be expected if php isn't installed? it seems that something got
parsed. My host doesn't mention php as being installed but they use it on
their own pages so I figure it might be, perhaps its just disabled on user
accounts?

-ryan