[WordPress] WordPress Widgets: Refactoring, Part 5

00-bootstrap-namespace.php

<?php

namespace WordPressWidgetBoilerplate;

use WordPressWidgetBoilerplate\Utilities\Registry;

// More to come...

01-bootstrap-registry.php

<?php

// Setup a filter so we can retrieve the registry throughout the plugin.
$registry = new Registry();
add_filter('wpWidgetRegistry', function () use ($registry) {
    return $registry;
});

02-retrieve-registry.php

<?php

// Retrieve the registry anywhere in the plugin.
$registry = apply_filters('wpWidgetRegistry', null);