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<?php

/**
 * Add categories to the list items.
 *
 * @since	2.2.0
 *
 * @param	string	$output	Formatted list item with link and and thumbnail
 * @param	object	$result	Object of the current post result
 * @param	array	$args	Array of arguments
 *
 * @return	string	Output variable with categories added
 */
function tptn_list_cats( $output, $result, $args ) {
	$categories = get_the_category_list( ", ", "", $result->ID );

	$output .= " " . $categories;

	return $output;
}
add_filter( 'tptn_list', 'tptn_list_cats' , 10, 3 );

<?php
/*
 * This example fetches the popular posts tracked by Top 10. 
 *
 */
 
if ( function_exists( 'get_tptn_pop_posts' ) ) {

	$settings = array(
		'daily' => TRUE,
		'daily_range' => 30,
		'limit' => 20,
		'strict_limit' => FALSE,
	);

	$topposts = get_tptn_pop_posts( $settings ); // Array of posts
	
	$topposts = wp_list_pluck( (array) $topposts, 'postnumber' );
	
	$args = array(
		'post__in' => $topposts,
		'orderby' => 'post__in',
		'posts_per_page' => 7,
		'ignore_sticky_posts' => 1 
	);
	
	$my_query = new WP_Query( $args );
	if ( $my_query->have_posts() ) {
		while ( $my_query->have_posts() ) {
			$my_query->the_post();
			echo '<a href="' . get_permalink( get_the_ID() ) . '">';
			the_title();
			echo '</a>';
			wp_reset_postdata();
		}
	} else {
	}
	wp_reset_query();
	
}