A simpler way of inserting a user into the database.
Update a user in the database.
Fires immediately after an existing user is updated.
Insert a user into the database.
Determines whether the given username exists.
Update user option with global blog capability.
Retrieve user option that can be either per Site or per Network.
Retrieve path of attachment template in current or parent template.
Deletes one existing category.
Determines whether the caller is in the Loop.
Determines whether the query is for a post or page preview.
Determines whether the query is for an existing attachment page.
Email login credentials to a newly-registered user.
Determines whether the current visitor is a logged in user.
Filters the permalink for an attachment.