AdLogic

<?php
/**
         * Show/Hide on Post. Has option to override category and term check.
         */
        elseif(is_single()):
            if(empty($instance['posts'])):
                if(!empty($instance['categories']) && is_array($instance['categories'])):
                    $categories = get_the_category(get_the_ID());
                    foreach($categories as $category):
                        if(!in_array( $category->term_id, $instance['categories']) ):
                            return false;
                        endif;
                    endforeach;
                else:
                    return false;
                endif;
                if(!empty($instance['tags']) && is_array($instance['tags'])):
                    $tags = get_the_tags(get_the_ID());
                    foreach($tags as $tag):
                        if(!in_array( $tag->term_id, $instance['tags']) ):
                            return false;
                        endif;
                    endforeach;
                else:
                    return false;
                endif;
            endif;