How to display all the categories a post is in

1 comment

1. In the loop use <?php the_category(', '); ?> or outside the loop :

   $post_categories = wp_get_post_categories( $post_id );
   
   foreach($post_categories as $c){
       $cat = get_category( $c );
       echo $cat->name . ",";
   }
   

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