_wp_get_user_contactmethods()
Function: The old private function for setting up user contact methods.
Source: wp-includes/user.php:2845
wp_get_password_hint()
Function: Gets the text suggesting how to create strong passwords.
Source: wp-includes/user.php:2856
setup_userdata()
Function: Sets up global user vars.
Source: wp-includes/user.php:1520
wp_dropdown_users()
Function: Creates dropdown HTML content of users.
Source: wp-includes/user.php:1611
sanitize_user_field()
Function: Sanitizes user field based on context.
Source: wp-includes/user.php:1774
update_user_caches()
Function: Updates all user caches.
Source: wp-includes/user.php:1884
clean_user_cache()
Function: Cleans all user caches.
Source: wp-includes/user.php:1911
username_exists()
Function: Determines whether the given username exists.
Source: wp-includes/user.php:1954
email_exists()
Function: Determines whether the given email exists.
Source: wp-includes/user.php:1986
validate_username()
Function: Checks whether a username is valid.
Source: wp-includes/user.php:2015