You’re referencing the global $wp_query object in your function which you’ve reset using wp_reset_query(). You can resolve the pagination by passing your custom $loop WP_Query object to the function. I also changed wp_reset_query to wp_reset_postdata Also you’re making the call to your pagination function in the while loop instead of after it. Your function should … Read more
wp_reset_postdata() resets the value of the global $post variable to the post property of the main query, which will be whatever post the main query was last on. You would do this if you had used setup_postdata() or $query->the_post() on a custom query. Both of these replace the global $post variable so that functions like … Read more
WordPress uses global $post variable. This way you don’t have to pass post nor post_ID as param for functions. So you can call the_title() and WP knows which title should it show. This behavior works fine, if there is only one loop on the site. But if you create your own custom loops and iterate … Read more
No. get_posts() does not modify global $wp_query variable and it doesn’t need to be cleaned up. Note that if you further use setup_postdata() you do need to wp_reset_postdata() afterwards.
The difference between the two is that wp_reset_query() – ensure that the main query has been reset to the original main query wp_reset_postdata() – ensures that the global $post has been restored to the current post in the main query. Indeed, looking at the source you’ll see that the wp_reset_query() calls wp_reset_postdata(). The only difference … Read more