robfelty

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)
<h3>Options</h3>
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 <code>collapsCat()</code> function either as an array or in query 
style, in the same manner as the <code>wp_list_categories</code> function.
<pre><code>$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'
);
</code></pre>
<ul>
<li>inExclude
<ul>
<li>Whether to include or exclude certain categories
<ul>
<li>‘exclude’ (default) </li>
<li>‘include’</li>
</ul>
</li>
</ul>
</li>
<li>inExcludeCats
<ul>
<li>The categories which should be included or excluded</li>
</ul>
</li>
<li>showPages
<ul>
<li>Whether or not to include pages as well as posts. Default if false</li>
</ul>
</li>
<li>linkToCat
<ul>
<li>1 (true), clicking on a category title will link to the category archive (default)</li>
<li>0 (false), clicking on a category title expands and collapses </li>
</ul>
</li>
<li>catSort
<ul>
<li>How to sort the categorys. Possible values:
<ul>
<li>‘catName’ the title of the category (default)</li>
<li>‘catId’ the Id of the category</li>
<li>‘catSlug’ the url of the category</li>
<li>‘catCount’ the number of posts in the category</li>
<li>‘catOrder’ custom order specified in the categorys settings</li>
</ul>
</li>
</ul>
</li>
<li>catSortOrder
<ul>
<li>Whether categories should be sorted in normal or reverse 
order. Possible values:
<ul>
<li>‘ASC’ normal order (a-z 0-9) (default)</li>
<li>‘DESC’ reverse order (z-a 9-0) </li>
</ul>
</li>
</ul>
</li>
<li>postSort
<ul>
<li>How to sort the posts. Possible values:
<ul>
<li>‘postDate’ the date of the post (default)</li>
<li>‘postId’ the Id of the post</li>
<li>‘postTitle’ the title of the post</li>
<li>‘postComment’ the number of comments on the post</li>
<li>‘postOrder’ sort by menu order</li>
</ul>
</li>
</ul>
</li>
<li>postSortOrder
<ul>
<li>Whether post should be sorted in normal or reverse 
order. Possible values:
<ul>
<li>‘ASC’ normal order (a-z 0-9) (default)</li>
<li>‘DESC’ reverse order (z-a 9-0) </li>
</ul>
</li>
</ul>
</li>
<li>expand
<ul>
<li>The symbols to be used to mark expanding and collapsing. Possible values:
<ul>
<li>‘0’ Triangles (default)</li>
<li>‘1’ + –</li>
<li>‘2’ [+] [-]</li>
<li>‘3’ images (you can upload your own if you wish)</li>
<li>‘4’ custom symbols</li>
</ul>
</li>
</ul>
</li>
<li>customExpand
<ul>
<li>If you have selected ‘4’ for the expand option, this character will be 
used to mark expandable link categories</li>
</ul>
</li>
<li>customCollapse
<ul>
<li>If you have selected ‘4’ for the expand option, this character will be 
used to mark collapsible link categories</li>
</ul>
</li>
<li>postTitleLength
<ul>
<li>Truncate post titles to this number of characters (default: 0 = don’t 
truncate)</li>
</ul>
</li>
<li>accordion
<ul>
<li>When set to true, expanding one category closes all others at that level</li>
</ul>
</li>
<li>catfeed
<ul>
<li>Whether to add a link to the rss feed for a category. Possible values:
<ul>
<li>‘none’ (default)</li>
<li>‘text’ shows RSS</li>
<li>‘image’ shows an RSS icon</li>
</ul>
</li>
</ul>
</li>
<li>taxonomy
<ul>
<li>Type of taxonmy to display. Possible values:
<ul>
<li>‘category’ (default)</li>
<li>‘link_category’</li>
<li>‘post_tag’</li>
<li>‘both’ (categories and tags)</li>
<li>any other registered taxononmy (e.g. recipe press uses recipe-categories)</li>
</ul>
</li>
</ul>
</li>
<li>showPostDate
<ul>
<li>When true, show the date of each post</li>
</ul>
</li>
<li>postDateAppend
<ul>
<li>Show the date before or after the post title. Possible values:
<ul>
<li>‘after’ (default)</li>
<li>‘before’</li>
</ul>
</li>
</ul>
</li>
<li>postDateFormat
<ul>
<li>What format the post date is in. This uses the standard php date 
formatting codes</li>
</ul>
</li>
<li>useCookies
<ul>
<li>When true, expanding and collapsing of categories is remembered for each 
visitor. When false, categories are always display collapsed (unless 
explicitly set to auto-expand). Possible values:
<ul>
<li>1 (true) (default)</li>
<li>0 (false)</li>
</ul>
</li>
</ul>
</li>
<li>showTopLevel
<ul>
<li>When set to false, the top level category will not be shown. This could 
be useful if you only want to show subcategories from one particular 
top-level category
<ul>
<li>1 (true) (default)</li>
<li>0 (false)</li>
</ul>
</li>
</ul>
</li>
<li>postsBeforeCats
<ul>
<li>When set to true, posts in category X will be ordered before 
subcategories of category X
<ul>
<li>1 (true)</li>
<li>0 (false) (default)</li>
</ul>
</li>
</ul>
</li>
<li>expandCatPost
<ul>
<li>When set to true, any category to which a post is assigned will 
automatically be expanded on a single post page.
<ul>
<li>1 (true) (default)</li>
<li>0 (false)</li>
</ul>
</li>
</ul>
</li>
<li>showEmptyCat
<ul>
<li>When set to true, empty categories are shown
<ul>
<li>0 (false) (default)</li>
<li>1 (true) </li>
</ul>
</li>
</ul>
</li>
<li>debug
<ul>
<li>When set to true, extra debugging information will be displayed in the 
underlying code of your page (but not visible from the browser). Use 
this option if you are having problems</li>
</ul>
</li>
</ul>
<h4>Examples</h4>
<pre><code>collapsCat('catSort=ASC&expand=3&inExcludeCats=general,uncategorized')
</code></pre>
This will produce a list with: 
* categories shown in alphabetical order 
* using images to mark collapsing and expanding 
* exclude posts from the categories general and uncategorized
<pre><code>`
</code></pre>
<?php 
 echo '
<ul>‘ . “\n”; 
 if (function_exists(‘collapsCat’)) { 
 collapsCat(array( 
 ‘postSort’ => ‘postDate’, 
 ‘postSortOrder’ => ‘DESC’, 
 ) ); 
 } else { 
 wp_get_categories(‘your_options_here’); 
 } 
 echo “</ul>
\n”; 
 ?> 
 `
<h3>Demo</h3>
I use this plugin in my blog at http://robfelty.com
<h3>CAVEAT</h3>
Currently this plugin relies on Javascript to expand and collapse the links. 
If a user’s browser doesn’t support javascript they won’t see the links to the 
posts, but the links to the categories will still work (which is the default 
behavior in wordpress anyways)

Collapsing Categories


	doesn't work with WP 4.9.1
	the code is terrible: it adds a big, ugly javascript in page with the widget html content. Never seen such an horror before.


Amateur work, avoid it.

doesn't work, bad coding

Adds a widget which uses Javascript to dynamically expand or collapse the set of posts for each category.

Pratik Shrestha

Catch Plugins

Sakin Shrestha

dreamsapana

Catch Themes

Mahesh Maharjan

Essential Widgets – a free WordPress plugin for widgets allows you to create and add interesting widgets on your website to make it more attractive and welcoming. Essential Widgets stays true to the essence of its name and offers exactly what you expect from a widgets plugin—all the “essential” widgets for your website. The plugin has been crafted beautifully to draw the extra attention to the important parts of your website. Essential Widgets provides you with the ability to have more control over the widgets with the various customization options. This free WordPress plugin for widgets allows you to create 7 different interesting widgets on your website. All the 7 widgets provided to you comes with so many customization options and are very easy to use. So, with Essential Widgets plugin, customize the interesting widgets your way and display them anywhere you want on your website to make it more dynamic.
<ol>
<li>
EW: Archives 
The Archives widget comes with various customization options. Choose a title, limit the number of posts, select the archive type, post type, order and more with the Archives widget.
</li>
<li>
EW: Authors 
Displaying the author’s information is kind of a must-have feature if your website has multiple authors. Our new WordPress widgets plugin allows you to add Authors widget. With this widget, you can show the list of the authors on your website, the number of posts, select feed type, and more.
</li>
<li>
EW: Categories 
Essential Widgets Pro supports Categories widget. The widget provides you with various customizable options such as the title of the widget, taxonomy option, order option, number of categories to show, display as a list or none, number of posts to display, sort by option, select feed type ton display and display as text or image.
</li>
<li>
EW: Menus 
Bored with the same default menu? Our new WordPress plugin for widgets, Essential Widgets Pro supports Menus widget. With the Menus widget filled with various customization options, you can display your menus elegantly anywhere you want on your website.
</li>
<li>
EW: Pages 
Display a list of pages with the Pages widget. With various customization options being provided to you, you can showcase the pages that are more important on your website wherever you want with Essential Widgets Pro.
</li>
<li>
EW: Posts 
Essential Widgets Pro supports Posts widget. With the widget and its customizable options, you can easily display a list of posts on your website. You can add a title, select the post type, number of items to display, order, sort by, and more.
</li>
<li>
EW: Tags 
And last, but definitely not the least, the Tags widget. You can display a list of tags as cloud or list, select the order of the tags, sort by option and the number of items to be displayed. The widget also provides you with more customization options including the unit, separator, search, text type, and more.
</li>
</ol>
<h3>Translations</h3>
To translate the plugin, use translate.wordpress.org (GlotPress). You only need your WordPress.org account to join the collaborative translation project.
You can translate Essential Widgets on <a href="https://translate.wordpress.org/projects/wp-plugins/essential-widgets/" rel="nofollow ugc">translate.wordpress.org</a>.

Essential Widgets

Essential Widgets is a WordPress plugin for widgets that allows you to create and add amazing widgets with high customization option

Collapsing Categories vs Essential Widgets