Add a new option for a given blog ID.

Adds a user to a blog based on details from maybe_add_existing_user_to_blog().

Adds a newly created user to the appropriate blog

Adds a user to a blog, along with specifying the user’s role.

Description Pending

Checks an array of MIME types against a list of allowed types.

Deprecated functionality to clear the global post cache.

Shows a message confirming that the new site has been created.

Shows a message confirming that the new site has been registered and is awaiting activation.

Shows a message confirming that the new user has been registered and is awaiting activation.