_wp_register_meta_args_whitelist()
Function: Filters out `register_meta()` args based on an allowed list.
Source: wp-includes/deprecated.php:4056
_wp_relative_upload_path()
Function: Returns relative path to an uploaded file.
Source: wp-includes/post.php:538
_wp_remove_unregistered_widgets()
Function: Compares a list of sidebars with their widgets against an allowed list.
Source: wp-includes/widgets.php:1547
_wp_reset_invalid_menu_item_parent()
Function: Prevents menu items from being their own parent.
Source: wp-includes/nav-menu.php:1294
_wp_sidebars_changed()
Function: Handle sidebars config after theme change
Source: wp-includes/widgets.php:1280
_wp_specialchars()
Function: Converts a number of special characters into their HTML entities.
Source: wp-includes/formatting.php:934
_wp_timezone_choice_usort_callback()
Function: Sort-helper for timezones.
Source: wp-includes/functions.php:6445
_wp_to_kebab_case()
Function: This function is trying to replicate what lodash’s kebabCase (JS library) does in the client.
Source: wp-includes/functions.php:5114
_wp_translate_php_url_constant_to_key()
Function: Translate a PHP_URL_* constant to the named array keys PHP uses.
Source: wp-includes/http.php:758
_wp_translate_postdata()
Function: Renames `$_POST` data from form names to DB post columns.
Source: wp-admin/includes/post.php:21