display all subcategories within posts on single.php

hi alchymyth!

thanks 4 your response. i do have a code working on the category.php. but -and i am more webdesigner than programmer 😉 – i am not sure why it doesn’t work on the single.php.

maybe you could have a look and help me out: THX

foreach((get_the_category()) as $category)
	{
    $postcat= $category->cat_ID;
    $catname =$category->cat_name;
    }
<h2><?php echo $catname; ?></h2>
	<?php $categories = get_categories("child_of=5"); foreach ($categories as $cat) { ?>
	<?php query_posts("cat=$cat->cat_ID&showposts=-1&order=ASC&orderby=name"); ?>
		<h3><?php single_cat_title(); ?></h3>
		<?php while (have_posts()) : the_post(); ?>

		<div class="what">
			<h3><a href="<?php the_permalink() ?>" rel="bookmark" title="Permanent Link to
			<?php the_title_attribute(); ?>"><?php the_title(); ?></a></h3>
		</div>
	<?php endwhile; ?>
<?php } ?>

a little problem..the result is perfect.. just one tiny little thing:

at the end (have a look:
http://www.goodandbad.net/sport-akustik/limited/perfekte-akustik-im-fur-forschung-und-lehre/)
it writes one subcategory (presse)with with the style of the category (<h2>)

but i just want to display the parent category with <h2> on top (Ltd.)

<?php
$post_categories = wp_get_post_categories( $post->ID );
foreach($post_categories as $c){
  $cat = get_category( $c );
  echo "<h1>". $cat->name . "</h1>";
  $childCats = get_categories( array('child_of' => $c) );
  if(is_array($childCats)):
    foreach($childCats as $child){ ?>
        <h2><?php echo $child->name; ?></h2>
<?php
        query_posts('cat='.$child->term_id);
        while(have_posts()): the_post(); $do_not_duplicate = $post->ID;
         //post code stuff here;
        endwhile;
        wp_reset_query();
    }
  endif;
}
?>

Presse should not be displayed.
would be glad if this could be fixed.

no, that is not the problem.:)

the problem is that the function :
echo "<h1>". $cat->name . "</h1>";
writes 2 categories. one at the beginning – which is good and one at the end (which is a subcategory in category-style) .

i think the foreach function is placed wrong. hope u know what i mean.
thx anyway