users_can_register_signup_filter()
Function: Determines whether users can self-register, based on Network settings.
Source: wp-includes/ms-functions.php:2320
welcome_user_msg_filter()
Function: Ensures that the welcome message is not empty. Currently unused.
Source: wp-includes/ms-functions.php:2333
maybe_add_existing_user_to_blog()
Function: Adds a new user to a blog by visiting /newbloguser/{key}/.
Source: wp-includes/ms-functions.php:2166
add_existing_user_to_blog()
Function: Adds a user to a blog based on details from maybe_add_existing_user_to_blog().
Source: wp-includes/ms-functions.php:2219
added_existing_user
Action Hook: Fires immediately after an existing user is added to a site.
Source: wp-includes/ms-functions.php:2233
add_new_user_to_blog()
Function: Adds a newly created user to the appropriate blog
Source: wp-includes/ms-functions.php:2253
recurse_dirsize()
Function: Gets the size of a directory recursively.
Source: wp-includes/functions.php:8399
check_upload_mimes()
Function: Checks an array of MIME types against a list of allowed types.
Source: wp-includes/ms-functions.php:1989
update_posts_count()
Function: Updates a blog’s post count.
Source: wp-includes/ms-functions.php:2016
wpmu_log_new_registrations()
Function: Logs the user email, IP, and registration date of a new site.
Source: wp-includes/ms-functions.php:2032