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1. Deckster0
   Member
   Posted 1 year ago #

   Just like how I would use query_posts to loop through posts, I would like to do that with categories instead. Showing the category title, description etc.

   So it's basically a loop listing categories.

2. keesiemeijer
   moderator
   Posted 1 year ago #

   Did you look at wp_list_categories

3. Deckster0
   Member
   Posted 1 year ago #

   I did, but from my point o f view it only left you create a list with links?

4. keesiemeijer
   moderator
   Posted 1 year ago #

   Put this function in functions.php

   function show_categories($excl=''){
      $categories = get_the_category($post->ID);
        if(!empty($categories)){
         	$exclude=$excl;
         	$exclude = explode(",", $exclude);
         	foreach ($categories as $cat) {
         		if(!in_array($cat->cat_ID, $exclude)) {
         		echo '<p>' . $cat->cat_name . '</p>';
         		echo '<p>' . $cat->category_description . '</p>';
         		}
   	      }
   
         }
   }

   You can call this function inside the loop in your template by:
   <?php show_categories('1,4,6'); ?>
   the comma seperated list ('1,4,6') is a list of categories you want to exclude. if you don't want to exlude use this:
   <?php show_categories(); ?>
   get_the_category is an array that produces these values
   

   [term_id] => 5
               [name] => News
               [slug] => news
               [term_group] => 0
               [term_taxonomy_id] => 5
               [taxonomy] => category
               [description] => This is a news category
               [parent] => 0
               [count] => 3
               [object_id] => 114
               [cat_ID] => 5
               [category_count] => 3
               [category_description] => This is a news category
               [cat_name] => News
               [category_nicename] => news
               [category_parent] => 0

   so if you want the postcount in there you put this in the function:
   echo '<p>' . $cat->count . '</p>';
   and so on..

5. GavinHope
   Member
   Posted 1 year ago #

   Hey,

   I'm having troubles with the standard wp_list_categories. For some reason it won't "work" in one of my pages. (I've got Exec-PHP installed).

   Do you think it's worth trying the function above?

   Can you access functions.php via the dashboard, or do I need to find the file manually?

   Cheers

6. keesiemeijer
   moderator
   Posted 1 year ago #

   Just try the function and alter it the way you want. In the dashboard go to Appearance and then to Editor. You can edit the functions.php file there. It is listed under: Theme Functions (functions.php). This is if your theme has a functions.php templatefile

7. GavinHope
   Member
   Posted 1 year ago #

   OK, thanks

8. GavinHope
   Member
   Posted 1 year ago #

   Hey,

   OK so I added the function to my functions.php file, no problems.

   I've called the function, in a page, like this:
   

   <p>
   Full category listing:
   </p>
   
   <ul>
   <?php show_categories(); ?>
   </ul>

   It just doesn't work, I don't get it...

   If someone could take a look at the two pages I'm talking about? This page here has two links at the very top, one to an archive page and the other to a category listing. One works, the other doesn't:

   http://www.afterbang.co.uk/links/

   Any ideas why categories aren't working?

9. keesiemeijer
   moderator
   Posted 1 year ago #

   ok I'm so sorry. Wrong function

   here you go
   

   function list_my_categories($exclude = '') {
   	if (!empty($exclude)) {
   		$exclude = 'exclude=' . $exclude;
   	}
   	$categories = get_categories($exclude);
   	$html = '';
   
   	foreach ($categories as $cat) {
   			if($cat->category_parent == 0) {
   				$html .= '<p>' . $cat->cat_name . '</p>';
         	                        $html .= '<p>' . $cat->category_description . '</p>';
   				$childcategories =  get_categories('child_of='.$cat->cat_ID.'');
     	  	                if(!empty($childcategories)){
   	  			  foreach ($childcategories as $ccat) {
   	  			  $html .= '<p>' . $ccat->cat_name . '</p>';
         		                  $html .= '<p>' . $ccat->category_description . '</p>';
   			          }
     	  	                }
   		       }
   	}
   
   	return $html;
   }

   call it with
   <?php echo list_my_categories('3,13') ?>

10. keesiemeijer
    moderator
    Posted 1 year ago #

    I just tested this and it works. Also you can use this outside of the loop. sorry

11. Deckster0
    Member
    Posted 1 year ago #

    Thanks Keesiemeijer! Works like a charm!

12. keesiemeijer
    moderator
    Posted 1 year ago #

    Glad you got it working!

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