WP Bootstrap Navwalker

This utility class formats WordPress theme menus with the correct HTML structure and CSS classes for Bootstrap 4+ dropdown navigation. It is designed for theme developers who want to integrate Bootstrap's navigation components without manually rewriting menu markup.

• Bootstrap 4+ and 5 support: The walker outputs markup compatible with Bootstrap 4 and 5. For Bootstrap 5, a filter is provided to use namespaced data attributes (e.g., data-bs-toggle). A separate branch is maintained for Bootstrap 3.
• Works with the built-in menu manager: No custom admin interfaces are needed. You assign menus to theme locations as usual, and the walker applies the correct classes automatically.
• Supports link modifiers via CSS classes: Disabled links, dropdown headers, dropdown dividers, and icon-only items can be added by entering specific class names (e.g., disabled, dropdown-header, sr-only) in the menu item's CSS Classes field.
• Icon integration: Glyphicons and Font Awesome class names entered in the CSS Classes field are applied to menu links. The walker does not include icon stylesheets—you must load them separately.
• Customizer edit shortcut fix: A documented workaround allows the menu edit shortcut to appear in the Customizer preview by passing the walker class name as a string and re-instantiating it via a filter.

The walker is a single PHP file that you include in your theme's functions.php. It does not include Bootstrap's own CSS or JavaScript files—those must be added separately. The project is open source and maintained on GitHub, with a changelog and contribution guidelines available in the repository.