Custom sidebar conditionals

I’ve read through the conditionals to try to figure out a way to make this happen but so far have had no luck. Here’s what I’d like to do.


if (is_page('12') || is_category('3')){?>
<h2>Recent Posts</h2>
<?php
$posts = get_posts('numberposts=4&category=3');
foreach($posts as $post) :
?>
<p class="title">"><?php the_title(); ?><?php the_excerpt(); ?>
<?php endforeach; } ?>


As it is written, the is_category() tag won’t work because this conditional only works “When the archive page for Category 3 is being displayed.”

How can I do this?