Reason of this behavior is pretty simple. First of all you have to know that get_posts uses WP_Query to get posts. So let’s look at WP_Query implementation. On line 1998 of query.php you can find: if ( $q[‘posts_per_page’] == -1 ) { $q[‘nopaging’] = true; Then on line 2544 of query.php you find: if ( … Read more
The offset index for WP_Query generally works with pagination. When you set pagination to a -1 the function assumes you’re getting all posts and there will be no pagination or offset. So to counteract this you would set the posts_per_page to a high number like 999. Reading the Function Reference on WP_Query the pagination section … Read more
Case #1: Simple Offset You want to ‘offset’ posts of a category archive by ‘n’, i.e. you simply don’t want to show the first/latest ‘n’ posts in an archive. That is, (considering the posts_per_page setting in WP Dashboard > Settings > Reading is set to 10) you want posts 11 to 20 to be shown … Read more
This is quite an interesting question (which I have upvoted, specially for your approach and research). The big curveball here is the first page of the query: You cannot set the query to return 0 posts on the first page By moving the page content of every page up by one page, you will loose … Read more