​The `cron_unschedule_event_error` PHP action in WordPress is triggered when there is an error while unscheduling a cron event. This article provides examples on how to use this action, such as…

The 'comment_form_logged_in' PHP filter in WordPress allows developers to customize the comment form for logged-in users.

The 'commentrss2_item' action in WordPress allows developers to add custom content to RSS feed comments by adding a function.

​The `attachment_innerHTML` WordPress filter modifies the HTML content of attachments on your site, allowing for customization of images and other media

The 'admin_color_scheme_picker' action adds custom color schemes to WordPress admin. Here's how to use it.

​The `add_action` function in WordPress allows developers to execute custom functions when the `all_admin_notices` PHP action is triggered, which displays generic admin screen notices

​The `atom_author` WordPress PHP action is used to fire at the end of each Atom feed author entry, allowing developers to add custom functionality to their feeds

The 'add_inline_data' PHP action in WordPress adds inline data to a page or post.

Learn how to use the WordPress `get_header()` PHP function to load the header template for a theme or a specialized header using different parameters like `$name`, `$args`. Get an explanation…