This code is incorrect! You have ‘taxonomy’ => ‘post-format’ But it really needs to be: ‘taxonomy’ => ‘post_format’ Without the underscore, the query will be invalid. I just tested this on my WordPress 3.1 install after pulling my hair out for hours. Hope that helps!!
Edit has_post_format() requires a string, $format, as the first parameter; which means that it can only be used to test for explicit post-format types: if ( has_post_format( $format ) { // Current post has the $format post format; // do something } To determine if a post has any post format, use get_post_format(), which will … Read more
You can’t actually pass a taxonomy-related argument to get_posts(). (Edit: actually, yes you can. The Codex is just somewhat unclear. Looking at source, get_posts() is, at its heart, just a wrapper for WP_Query().) You can pass meta keys/values, and post types, but not taxonomies such as post format. So for this line: $myposts = get_posts(‘numberposts=-1&orderby=post_date&order=DESC’); … Read more
Taxonomies, as previously described are a collective noun for the following category post_tag post_format link_category custom taxonomy The first four are built-in taxonomies, while custom taxonomies are taxonomies that are manually created by the user with register_taxonomy. Custom Taxonomies can be hierarchical (like the build-in taxonomy category) or not (like post tags) The categories and … Read more