Collapsing Categories

Collapsing Categories creates an expandable list of categories and
subcategories. It can also expand to show posts. The primary usage is as a
widget, but you can also use the code in your theme manually if you wish (see
installation instructions)

Options

Options can be set
from the block panel. If you wish to insert the code into your theme manually
instead of using a widget, you can use the following options. These options
can be given to the collapsCat() function either as an array or in query
style, in the same manner as the wp_list_categories function.

$defaults=array(
   'showPostCount' => true,
   'inExclude' => 'exclude',
   'inExcludeCats' => '',
   'showPosts' => true, 
   'showPages' => false,
   'linkToCat' => true,
   'olderThan' => 0,
   'excludeAll' => '0',
   'catSortOrder' => 'ASC',
   'catSort' => 'catName',
   'postSortOrder' => 'ASC',
   'postSort' => 'postTitle',
   'expand' => '0',
   'defaultExpand' => '',
   'postTitleLength' => 0,
   'accordion' => 0,
   'catfeed' => 'none',
   'taxonomy' => 'category',
   'showPostDate' => false,
   'postDateAppend' => 'after',
   'postDateFormat' => 'm/d',
   'useCookies' => true,
   'showTopLevel' => true,
   'postsBeforeCats' => false,
   'expandCatPost' => true,
   'debug'=>'0'
);

• inExclude
  • Whether to include or exclude certain categories
    • ‘exclude’ (default)
    • ‘include’
    • The categories which should be included or excluded
    • Whether or not to include pages as well as posts. Default if false
    • 1 (true), clicking on a category title will link to the category archive (default)
    • 0 (false), clicking on a category title expands and collapses
    • How to sort the categorys. Possible values:
      • ‘catName’ the title of the category (default)
      • ‘catId’ the Id of the category
      • ‘catSlug’ the url of the category
      • ‘catCount’ the number of posts in the category
      • ‘catOrder’ custom order specified in the categorys settings
      • Whether categories should be sorted in normal or reverse
        order. Possible values:
        • ‘ASC’ normal order (a-z 0-9) (default)
        • ‘DESC’ reverse order (z-a 9-0)
        • How to sort the posts. Possible values:
          • ‘postDate’ the date of the post (default)
          • ‘postId’ the Id of the post
          • ‘postTitle’ the title of the post
          • ‘postComment’ the number of comments on the post
          • ‘postOrder’ sort by menu order
          • Whether post should be sorted in normal or reverse
            order. Possible values:
            • ‘ASC’ normal order (a-z 0-9) (default)
            • ‘DESC’ reverse order (z-a 9-0)
            • The symbols to be used to mark expanding and collapsing. Possible values:
              • ‘0’ Triangles (default)
              • ‘1’ + –
              • ‘2’ [+] [-]
              • ‘3’ images (you can upload your own if you wish)
              • ‘4’ custom symbols
              • If you have selected ‘4’ for the expand option, this character will be
                used to mark expandable link categories
              • If you have selected ‘4’ for the expand option, this character will be
                used to mark collapsible link categories
              • Truncate post titles to this number of characters (default: 0 = don’t
                truncate)

              Read the full description on the official page →