Sidebar PHP returns error

[kh99]

If you're creating a forum block, you would want to choose "php" as the type, then you should be able to use php. But your php would have to "return" the html as a string instead of outputting it like your code is doing. You could solve that by using ob_start()/ob_end() like in the links tbworld provided, or you could just rewrite the code to build a string instead of using ?> and <?php to include html.