? If specific category → don't show the category name

[Matus]

Hello everybody,
I have a PHP function (below), which I'm adding into functions.php file in my Genesis Sample Theme.
This code shows the name of the category in post and in my case it's outputted in entry header.
I already style it with CSS, but I need a little help with taking this code a step further.

I'd like to add to this code condiction if is post filed under category named "Blog", this category won't be displayed.
But if is the post filed except the category "Blog" also in other categories, don't show just category "Blog".
So, my question is: How to do that?

My code:

add_action ('genesis_entry_header' , 'category_name_link', 11);
function category_name_link() {
	$categories = get_the_category();
	if ( ! empty( $categories ) )
		?>
			<div class="category-custom">
				<?php echo '<a href="' . esc_url( get_category_link( $categories[0]->term_id ) ) . '">' . esc_html( $categories[0]->name ) . '</a>'; ?>
			</div>
		<?php
}

I'll appreciate any advice.

[Brad Dalton]

Please clarify the conditionals?

---

Tutorials for StudioPress Themes.

[Matus]

I'd like to display article category in post.
I don't want to use the standard edit method - StudioPress plugin Simple Edits.
What I don't like about this plugin I can choose only entry meta (above and below) article sections and there put some available shortcodes.

My conditions:
1. Display post category above post title. This category should be also linked to its archive page. (When I click on category named Newsletter, I will be redirect to the Newsletter category archive page.)
2. If is article filed under category Blog, don't display just category Blog.
3. Don't display categories in pages (that's I think sure thing because pages don't have categories).

[Matus]

One more think.
I don't want to display text "Filed under:" before categories.
Just the names of categories separated without comma (I'll style it so each category will have own border around itself).

[clintongallagher]

My advice is about the switch statement. It is the way we solve problems like the one you're working with. Learn it. A couple of YouTube videos and you'll have it down pat.

[Matus]

I resolved this problem. I created one category "Blog" and then every other category I set as subcategory to the Blog. In the posts I add categories I wanted except Blog. Because the Blog is the main category I was able to find all the posts in Blog page.

[Author]

Posts