Displays the contents of the search query variable.

Description Pending

Update attachment file path based on attachment ID.

Flushes rewrite rules if siteurl, home or page_on_front changed.

Updates metadata cache for list of post IDs.

Retrieves HTML dropdown (select) content for category list.

Retrieves HTML list content for category list.

Retrieves HTML dropdown (select) content for page list.

Retrieves HTML list content for page list.

Determines whether an attachment is an image.