WordPress Version: 6.5
/**
* APIs to interact with global settings & styles.
*
* @package WordPress
*/
/**
* Gets the settings resulting of merging core, theme, and user data.
*
* @since 5.9.0
*
* @param array $path Path to the specific setting to retrieve. Optional.
* If empty, will return all settings.
* @param array $context {
* Metadata to know where to retrieve the $path from. Optional.
*
* @type string $block_name Which block to retrieve the settings from.
* If empty, it'll return the settings for the global context.
* @type string $origin Which origin to take data from.
* Valid values are 'all' (core, theme, and user) or 'base' (core and theme).
* If empty or unknown, 'all' is used.
* }
* @return mixed The settings array or individual setting value to retrieve.
*/
function wp_get_global_settings($path = array(), $context = array())
{
if (!empty($context['block_name'])) {
$new_path = array('blocks', $context['block_name']);
foreach ($path as $subpath) {
$new_path[] = $subpath;
}
$path = $new_path;
}
/*
* This is the default value when no origin is provided or when it is 'all'.
*
* The $origin is used as part of the cache key. Changes here need to account
* for clearing the cache appropriately.
*/
$origin = 'custom';
if (!wp_theme_has_theme_json() || isset($context['origin']) && 'base' === $context['origin']) {
$origin = 'theme';
}
/*
* By using the 'theme_json' group, this data is marked to be non-persistent across requests.
* See `wp_cache_add_non_persistent_groups` in src/wp-includes/load.php and other places.
*
* The rationale for this is to make sure derived data from theme.json
* is always fresh from the potential modifications done via hooks
* that can use dynamic data (modify the stylesheet depending on some option,
* settings depending on user permissions, etc.).
* See some of the existing hooks to modify theme.json behavior:
* https://make.wordpress.org/core/2022/10/10/filters-for-theme-json-data/
*
* A different alternative considered was to invalidate the cache upon certain
* events such as options add/update/delete, user meta, etc.
* It was judged not enough, hence this approach.
* See https://github.com/WordPress/gutenberg/pull/45372
*/
$cache_group = 'theme_json';
$cache_key = 'wp_get_global_settings_' . $origin;
/*
* Ignore cache when the development mode is set to 'theme', so it doesn't interfere with the theme
* developer's workflow.
*/
$can_use_cached = !wp_is_development_mode('theme');
$settings = false;
if ($can_use_cached) {
$settings = wp_cache_get($cache_key, $cache_group);
}
if (false === $settings) {
$settings = WP_Theme_JSON_Resolver::get_merged_data($origin)->get_settings();
if ($can_use_cached) {
wp_cache_set($cache_key, $settings, $cache_group);
}
}
return _wp_array_get($settings, $path, $settings);
}