Retrieves a post’s terms as a list with specified format.

Retrieves the terms of the taxonomy that are attached to the post.

Retrieve user info by email.

Unused function.

Checks if any action has been registered for a hook.

Checks if any filter has been registered for a hook.

Retrieves the image attachment fields to edit form fields.

Was used to filter input from media_upload_form_handler() and to assign a default post_title from the file name if none supplied.

Scale down the default size of an image.

Scale an image to fit a particular size (such as ‘thumb’ or ‘medium’).