How to list categories and subcategories in WordPress

2 comments

1. See the get_categories function, there is a parameter called “hide_empty”. For instance:

   <?php $cats = get_categories('hide_empty=0'); ?>
   

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2. use get_categories() function to get all categories.

   $args = array(
       'type'                     => 'post',
       'child_of'                 => 0,
       'parent'                   => '',
       'orderby'                  => 'name',
       'order'                    => 'ASC',
       'hide_empty'               => 1,        // hide empty categories [0] false
       'hierarchical'             => 1,
       'exclude'                  => '',
       'include'                  => '',
       'number'                   => '',
       'taxonomy'                 => 'category',
       'pad_counts'               => false
   );
   $categories = get_categories( $args );
   

   after you have stored all categories in a variable use print_r to see all the values of the array that you can use.

       echo "<pre>";
           print_r( $slider_category );
       echo "</pre>";
   

   when you use print_r you will see like this

   Array (
   [0] => stdClass Object
       (
           [term_id] => 11
           [name] => Architecture
           [slug] => architecture
           [term_group] => 0
           [term_taxonomy_id] => 11
           [taxonomy] => category
           [description] => 
           [parent] => 0
           [count] => 3
           [cat_ID] => 11
           [category_count] => 3
           [category_description] => 
           [cat_name] => Architecture
           [category_nicename] => architecture
           [category_parent] => 0
       ))
   

   play with the code and you will get what you want.

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