[support] bit of php code in a block - how?

Hi everyone!

I'm trying to put a little one-line date string on my site (eg.: 2007. April 16 (Monday)). The most quick and easiest way I thought was to create a new block (with admin/build/block) and put this code in it: <?php echo date("Y. F j. (l)"); ?>

Then add this block to my site.

But when loading the page I just get the code displayed and not executed. I have an Input format which allows PHP code and is available to nobody (so I can use it only with uid==1), and I've added the block content with this filter. Can't see what is the problem :\

Please comment, thank you!

ps.: If there is a feature already in drupal which does this, that would be even better :)

Daniel