Contents
How are categories checked in a WordPress post?
The given categories are checked against the post’s categories’ term_ids, names and slugs. Categories given as integers will only be checked against the post’s categories’ term_ids. Prior to v2.5 of WordPress, category names were not supported. Prior to v2.7, category slugs were not supported.
How do you create a new category in WordPress?
Alternatively, you can add new categories directly from the post edit screen. In this case, WordPress will show you a simple form that lets you enter the name and parent for your new category. While this is a faster way of adding new taxonomies while writing posts, you should still manage the new category to edit its slug and description.
How are child categories used in WordPress categories?
Slugs create a link to your category page that lists all posts that you have created in that category. Categories are hierarchical, meaning that each one can have child categories. A child category is used for a sub-topic under a broader topic.
What happens if you delete a category in WordPress?
Deleting does not delete posts filed under it. Instead, if a post is not filed into any other categories, then WordPress would automatically file the post under the default category. It is also important to know that you can not delete a default category.
How does the has category function work in WordPress?
Checks if the current post has any of given category. The given categories are checked against the post’s categories’ term_ids, names and slugs. Categories given as integers will only be checked against the post’s categories’ term_ids. If no categories are given, determines if post has any categories.
How to filter array of categories in WordPress?
* Filters the array of categories to return for a post. * @since 4.4.0 Added `$post_id` parameter. * @param WP_Term [] $categories An array of categories to return for the post. * @param int|false $post_id ID of the post.
Do you need a category ID in WordPress?
For some WordPress widgets, themes or plugins you need to enter the category ID to filter posts based on categories. Since WordPress version 2.5 category IDs are not displayed anymore on the WordPress admin pages. But how to find WordPress category IDs after they have been removed?