sanitize_user
Filter Hook: Filters a sanitized username string.
Source: wp-includes/formatting.php:1887
set_current_user
Action Hook: Fires after the current user is set.
Source: wp-includes/pluggable.php:47
wp_mkdir_p()
Function: Recursive directory creation based on full path.
Source: wp-includes/functions.php:1589
update_option_{$option}
Action Hook: Fires after the value of a specific option has been successfully updated.
Source: wp-includes/option.php:401
validate_username()
Function: Checks whether a username is valid.
Source: wp-includes/user.php:1366
validate_username
Filter Hook: Filters whether the provided username is valid or not.
Source: wp-includes/user.php:1378
set_current_user()
Function: Changes the current user by ID or name.
Source: wp-includes/pluggable-deprecated.php:32
WP_Rewrite::flush_rules()
Method: Removes rewrite rules and then recreate rewrite rules.
Source: wp-includes/class-wp-rewrite.php:1744