File Content: category-list.php <?php add_action( 'widgets_init', 'labtechco_category_list_widget' ); function labtechco_category_list_widget() { register_widget( 'labtechco_category_list_widget' ); } class labtechco_category_list_widget extends WP_Widget { /** * Sets up the widgets name etc */ public function __construct() { $widget_style = array('classname' => 'labtechco_category_list_widget', 'description' => esc_attr__('Show Category List of current Taxonomy.', 'labtechco') ); parent::__construct( 'labtechco_category_list_widget', // Base ID esc_attr__('LabtechCO Category/Group List Widget', 'labtechco'), // Name $widget_style // Args ); } /** * Outputs the content of the widget * * @param array $args * @param array $instance */ public function widget( $args, $cur_instance ) { extract( $args ); $title = apply_filters( 'widget_title', $cur_instance['title'] ); ?> <?php echo themestek_wp_kses( $before_widget ); ?> <?php if ( !empty($title) ){ $category_list_widget_title = $before_title . $title . $after_title; echo themestek_wp_kses( $category_list_widget_title ); } ?> <?php // prepares and shows all tax list echo themestek_wp_kses( themestek_show_taxonomy_list() ); ?> <?php echo themestek_wp_kses( $after_widget ); ?> <?php } /** * Processing widget options on save * * @param array $new_instance The new options * @param array $old_instance The previous options */ function update( $new_instance, $org_instance ) { $cur_instance = $org_instance; $cur_instance['title'] = strip_tags( $new_instance['title'] ); return $cur_instance; } /** * Outputs the options form on admin * * @param array $instance The widget options */ function form( $cur_instance ) { $defaults = array( 'title' => 'Categories' ); $cur_instance = wp_parse_args( (array) $cur_instance, $defaults ); ?> <p> <label for="<?php echo esc_attr($this->get_field_id( 'title' )); ?>"><?php esc_attr_e('Title', 'labtechco'); ?>:</label> <input type="text" class="widefat" id="<?php echo esc_attr($this->get_field_id( 'title' )); ?>" name="<?php echo esc_attr($this->get_field_name( 'title' )); ?>" value="<?php echo esc_attr($cur_instance['title']); ?>" /> </p> <?php } } /** * Category list maker */ if( !function_exists('themestek_show_taxonomy_list') ){ function themestek_show_taxonomy_list(){ $return = ''; $supported_post_type = array( 'post', 'ts-portfolio', 'ts-service', 'ts-team-member', ); $supported_taxonomy = array( 'category', 'ts-team-group', 'ts-portfolio-category', 'ts-service-category' ); $supported_post_type_group = array( 'post' => 'category', 'ts-portfolio' => 'ts-portfolio-category', 'ts-service' => 'ts-service-category', 'ts-team-member' => 'ts-team-group' ); $class = ''; // If on taxonomy if( is_tax($supported_taxonomy) ){ global $wp_query; $tax = $wp_query->get_queried_object(); $return = wp_list_categories( array( 'taxonomy' => $tax->taxonomy, 'hide_empty' => 0, 'title_li' => '', 'use_desc_for_title' => 0, 'echo' => false ) ); $class = ' ts-taxlist-tax ts-taxlist-tax-' . $tax->taxonomy; } // If on single view if( is_singular( $supported_post_type ) || in_array( get_post_type(), $supported_post_type ) ){ $tax = $supported_post_type_group[get_post_type()]; $return = wp_list_categories( array( 'taxonomy' => $tax, 'hide_empty' => 0, 'title_li' => '', 'use_desc_for_title' => 0, 'echo' => false ) ); $class = ' ts-taxlist-single ts-taxlist-single-' . get_post_type(); } // Final data if( !empty($return) ){ $return = '<div class="ts-taxonomy-term-list' . $class . '"><ul>' . $return . '</ul></div>'; } return $return; } } Submit