Determine whether post should always use a plain permalink structure.

Returns the canonical URL for a post.

Returns a shortlink for a post, page, attachment, or site.

Sends a Link: rel=shortlink header if a shortlink is defined for the current page.

Injects rel=shortlink into the head if a shortlink is defined for the current page.

Filters the permalink for a non-page_on_front page.

Filters the adjacent post link.

Filters the adjacent post relational link.

Filters the admin area URL.

Filters the permalink for an attachment.