the_author_posts_link() Displays an HTML link to the author page of the current post's author.
get_author_posts_url() Retrieves the URL to the author page for the user with the ID provided.
wp_list_authors() Lists all the authors of the site, with several options available.
is_multi_author() Determines whether this site has more than one author.
__clear_multi_author_cache() Helper function to clear the cache for number of authors.
login_header() Outputs the login page header.
login_footer() Outputs the footer for the login page.
wp_shake_js() Outputs the JavaScript to handle the form shaking on the login page.
wp_login_viewport_meta() Outputs the viewport meta tag for the login page.
do_signup_header() Prints signup_header via wp_head.
wpmu_signup_stylesheet() Prints styles for front-end Multisite Sign-up pages.
show_blog_form() Generates and displays the Sign-up and Create Site forms.
validate_blog_form() Validates the new site sign-up.
show_user_form() Displays the fields for the new user account registration form.
validate_user_form() Validates user sign-up name and email.
signup_another_blog() Shows a form for returning users to sign up for another site.
validate_another_blog_signup() Validates a new site sign-up for an existing user.
confirm_another_blog_signup() Shows a message confirming that the new site has been created.
signup_user() Shows a form for a visitor to sign up for a new user account.
validate_user_signup() Validates the new user sign-up.
confirm_user_signup() Shows a message confirming that the new user has been registered and is awaiting activation.
signup_blog() Shows a form for a user or visitor to sign up for a new site.
validate_blog_signup() Validates new site signup.
confirm_blog_signup() Shows a message confirming that the new site has been registered and is awaiting activation.
signup_get_available_languages() Retrieves languages available during the site/user sign-up process.